pyrophorus (pir of or us)

[NL., 2. [ cap.] [NL. (Illiger, 1809).] A notable genus of elaterid beetles, comprising nearly a hundred species, con fined to tropical and sub tropical America, and containing the most brilliant forms of luminous insects. The light is given out from two oval spots in the pronotum near each basal angle, and from a point beneath, between the thorax and the abdomen. These beetles fly in a nearly direct line, and the light is more intense and sustained than that of the Lampyridæ. In many countries of tropical America they are used as toilet ornaments and Pyrophorus noctilucus. form an article of trade. P. noctilucus is a large West Indian species, often brought alive to the United States. See also cut under antenna. 3. [ cap.] A genus of arachnidans. Koch, 1837. pyrophosphate (pi-ro-fosfāt), n. [ The Century Dictionary and Cyclopedia IMG:content-1386.png:[blocks in formation] pyrophosphoric (pī"ro-fos-for'ik), a . [ medicine. pyrophotography (pi"ro-fō-tog'ra-fi), n. [ photography .] Certain photographic proce es in which heat is used to fix the picture. pyrophyllite (pi-ro-fil'it), n. [So called in allusion to its exfoliation before the blowpipe; πῦρ , fire, + φύλλον, leaf, + -ite2 .] A hydrated aluminium silicate, occurring in foliated talc-like sub transparent ma es having a white, green, or yellow color and pearly luster. pyro phys a lite (pi-rō-fis'a-lit), n. [ πῦρ , fire, + E. phys a lite .] See phys a lite . pyro puncture (pi-rō-pungk'tūr), n. [ πῦρ , fire, + Ε. puncture .] Puncturing with hot needles; also, a puncture so made. pyro racemate (pi-rō-ras'e-māt), n. [ pyrora cem ( ic ) + -atel .] A salt formed by the union of pyro racemic acid with a base. pyro schist (piro-shist), n. [ πῦρ , fire, + E. schist .] Schist or shale containing sufficient bituminous matter (hydrocarbons) to burn with a bright flame, or yielding volatile hydro car bon or inflammable gas when heated. pyro sclerite (pi-rō-sklē'rīt), n. [ πῦρ , fire, + σκληρός , hard, + -ite2 .] An emerald-green mineral allied to the chlorites, occurring in serpentine in the island of Elba, Italy. pyroscope (pi'rō-skop), n. [ πῦρ , fire, + σκοπεῖν , view.] An instrument for measuring the intensity of radiating heat or cold. It resembles a differential thermometer, having one bulb covered with quicksilver-leaf, while the other is bare. pyro silver (pi-rō-sil'vėr), n. [ πῦρ , fire, + E. silver .] A trade-name for electroplated wares which, after they are taken from the bath, are subjected to heat. This treatment seems to cause the metal to sink into the pores of the plated base metal and adhere to it much more firmly and durably. The proce is technically called burning - in . pyrosis (pi-ro's is), n. [ πύρωσις , a burning, a kindling, πυροῦν , set on fire, burn, πῦρ , fire: see fire .] In pathol . , the eructation of watery fluid, usually insipid, but sometimes acrid, attended with more or le burning pain in the epigastrium. It is commonly called water - brash , pyrosmalite (pi-ros'ma-līt), n. [ πῦρ , fire, + οσμή, a smell, an object of smell, + λίθος, stone.] A mineral of a liver-brown color, or pistachio-green, occurring in six-sided prisms, with perfect basal cleavage, found in Sweden. It is a silicate of iron and manganese, containing chlorin, the odor of which it exhales when heated. Pyrosoma (pī-rō-sō'mä), п . [NL. (Péron), πῦρ , fire, + σῶμα , body.] The typical genus of Pyrosomatidæ : so called from their phosphorescence. They inhabit the Mediterranean and Atlantic. They unite in great numbers, forming a large hollow cylinder, open at one end and closed at the other, swimming in the ocean by the alternate contraction and dilatation of its component individual animals. See cut under cyathozoöid . Pyrosomatidæ (pī"rō-sō-mat'i-dē), n . pl . [NL., Pyrosoma ( -somat- ) + -idæ .] A family of compound or aggregate ascidians of the cla Tuni cat a , typified by the genus Pyrosoma , sometimes representing an order or suborder Dactyliobran chia ; the fire bodies. They are free-swimming pelagic organisms, highly luminous, united together in hollow chains or rods several inches long, one end of each individual fitting into the cavity of the next, somewhat like a set of thimbles. Also Pyrosomidæ , Pyrosomiidæ . pyrosome (pīrō-som), n. [ Pyrosoma .] A member or individual of the genus Pyroso ma ; a fire body. Pyrosomidæ (pi-rō-som'i-dē), n . pl . [NL., Pyrosomatidæ . Pyro som i idea (pi-rō-sō-mi-id'ē-ä), n . pl . [NL.] A false form of Pyrosomatidæ or Pyrosomidæ , taken as the name of an order of ascidians which that family is supposed to represent. E. R. Lankester . pyrostat (pi'rō-stat), n. [ πῦρ , fire, + στατός, ἱστάναι , set up, stand: see static .] An automatic draft-regulator for chimneys, smoke pipes, and smoke-stacks. See draft - regulator , under regulator . πῦρ , fire, + E. stereotype .] A proce by which a mold for casting a printing relief-plate is ob- tained by burning an intaglio to a definite depth in the face of a wood block by means of heated steel dies and a special apparatus. It is used for printing music, etc. pyrostilpnite (pi-ro-stilp'nīt), n. [ πῦρ , fire, + στιλπνός, glistening, + -ite2 .] A rare mineral, occurring in minute tabular monoclin- ic crystals. It is a sulphid of arsenic and silver, near proustite in composition. Also called fire blende . pyrosulphuric (pirō-sul-fu'rik), a . [ πῦρ , fire, acid by the action of heat.-Pyrosulphuric acid. ire, + E. sulphuric .] Obtained from sulphuric Same disulphuric acid (which see, under disulphuric ). pyro tartaric (pīrō-tär-tar'ik), a . [ πῦρ , fire, + E. tartaric .] Obtained by heating tartaric acid in a close ve el: as, pyro tartaric acid (C5H804). pyrotartrate (pī-rō-tär'trāt), n . [ πῦρ , fire, + E. tartrate .] A salt of pyro tartaric acid. pyrotechnian (pi-rō-tek'ni-an), n . [ pyrotech- ny + -an .] A pyrotechnist. pyrotechnic (pī-rō-tek'nik), a . + -ic .] Of or pertaining to fireworks or the art of making them. [ pyrotechn - y pyrotechnical (pi-rō-tek'ni-kal), a . technic . + -al .] Same as pyrotechnic . nical sponge. Same as amadou . [ pyro Pyrotech pyrotechnician (pīrō-tek-nish'an), n. [ pyro technic + -i - an .] A pyrotechnist. pyrotechnics (pi-rō-tek'niks), n. [Pl. of pyro- technic (see -ics).] The art of making fire- works; the composition, structure, and use of fireworks. See firework , 2. pyrotechnist (pi-rō-tek'nist), n . [ -ist .] One who is skilled in pyrotechny; a manufacturer of fireworks. pyrotechny (pīrō-tek-ni), n. [ πῦρ , fire, + τέχνη, art.] 1. The management and me- chanical application of fire. Does man go thus far by his skill in pyrotechny , and shall not God do more, who is the Cosmotect? Evelyn , True Religion, I. 199. 2. The fabrication of fireworks for military and ornamental purposes (see firework , 2); the composition and scientific use of combustible substances employed as signals, as destructive agents, or for purposes of display. pyrothonide (pi-roth'ō- + ὀθόνη , fine linen, + men, -ide1 .] A kind of empy- textures of hemp, linen, or cotton in a copper ve el, formerly erly used in medicine. Dunglison. руг pyrotic (pi-rot'ik), a. and n. [ πυρωτικός , burning, heating, πυροῦν , set on fire, πῦρ , ide (pi-roth'ō-nid), n. [ πῦρ , fire, fire: see pyrosis .] I. a . Caustic. n . II. n. A caustic medicine. pyro-uric (pi-rō-ū'rik), a . ), a . [ πῦρ , fire, + οὗρον , urine, + -ic .] -ic.] In chem ., same as cyanuric. pyro xanthine, pyro xanthin (pi-rok-san'thin), [ πῦρ , fire, + ξανθός , yellow, + -ine2, -in2.] A yellow crystal lin yellow crystalline substance found in crude wood-spirit. Also called eblanin . pyroxene (pi'rok-sēn), n. [ πῦρ , fire, + ξένος , a guest.] guest.] An important mineral spe- cies, embracing many varieties differing in ap- pearance and chemical composition. It occurs in monoclinic crystals, often short prismatic in habit, and with an angle in front of nearly 90°, so that these crystals resemble square prisms. Granular forms are common, and also ma ive varieties, the latter being usually coarse- ly laminated in structure, rarely fibrous or columnar. The color varies from white to gray, green, brown, and black, and the composition from the simple metasilicate of cal cium and magnesium to kinds containing, with calcium or magnesium, or both, iron, manganese, and aluminium. The different varieties are usually divided into two groups, the non-aluminous and the aluminous. Of the former the prominent kinds are-diopside or malacolite, which con- tains only calcium and magnesium, and is white to gray or light-green in color, with the subvarieties called alalite or mu ite (the diopside proper, from the Mu a Alp in the Ala valley in Piedmont, occurring in beautiful slender crystals), traversellite, can a a nite, and white granular coc- colite, and those containing iron, namely the grayish-green to deep-green or black salite, occurring in laminated ma - es, the crystallized baikalite, the granular green coccolite, and the deep-green diallage, which is characterized by a distinct parting parallel to the ortho pinacoid plane and often by a pearly to metalloidal luster on this surface; also the lime-iron variety, hedenbergite, and the manga- nesian schefferite. The aluminous kinds include fa aite, which is light to dark-green in color, and the common augite, which is dark-green to black and contains consid- erable ironia Augite is characteristic of many eruptive rocks, especially those of a basic character, basalt, etc. Diallage is an e ential constituent of the gabbros, of norite, etc. Besides the above varieties or subspecies belonging to pyroxene proper, the pyroxene group includes the related species enstatite or bronzite and hypersthene, which are orthorhombic in crystal liz a- tion (hence called rhombic pyroxenes ); also the mono- pyrrhic hi us clinic species wollastonite, ægirite and acmite, spodumene, and the triclinic rhodonite and babingtonite. Jadeite probably also belongs here. All these are characterized by the same prismatic angle of 87°. This group is closely related to the analogous amphibole (or hornblende) group, the species of which are characterized by a prismatic angle of 1244°; and several of the kinds under the two groups correspond exactly in composition -for example, diopside to tremolite, etc. A change of pyroxene to hornblende by a proce of paramorphism is often observed, especially in certain igneous rocks. See uralite and uraliti zati on . pyroxenic (pi-rok-sen'ik), a . [ pyroxene + -ic .] Pertaining to pyroxene, or partaking of its qualities; composed of or containing pyroxene. IMG:content-1387.png:[blocks in formation] ξύλον, wood.] Same as pyroxylin . ξύλον, wood (cf. pyroxyle ), + -ic .] Obtained by pyroxylic (pi-rok-sil'ik), a. [ πῦρ , fire, + distilling wood. - Pyroxylic spirit, methylic alcohol; a product of the distillation of wood. It constitutes about tar, and is obtained from these products by re-distillation. one tenth of the watery products after separation of the Rectification is partially effected by first heating it with slaked lime, which frees a large quantity of ammonia, next neutralizing the remainder of the ammonia and precipitating the remaining traces of tar by sulphuric acid, then again distilling and pa ing it several times over quicklime. The product is the crude wood-spirit of commerce, which still contains many impurities; these are removed by chemically combining it with calcium chlorid and heating the compound over a water-bath to 100° C., which drives off volatile impurities. It is then distilled with water, ved which breaks up the combination and sets free the pyrox whe spirit diluted with water heater is the to get the desired strength by treatment with quicklime. Also called wood - spirit and wood - alcohol . pyroxylin, pyroxyline (pi-rok'si-lin), n . [ py roxyle + -in2, -ine2.] Guncotton or a similar substance obtained by immersing vegetable fiber in nitric or nitro sulphuric acid, and then suffering it to dry. Such substances are nitro derivatives of cellulose. Also pyroxyle .-Soluble pyroxylin. Same as dinitro cellulose . pyrrhicl (pir'ik), n. and a. [L. pyrrhicha , pyrrhic he , πυρρίχη , a kind of war-dance, said to be named from Pyrrhichus, the inventor, Πύρριχος , Pyrrhichus.] I. n. An ancient Grecian warlike dance, in quick and light measure, accompanied by the flute. It consisted chiefly in adroit and nimble steps and motions of the body, intended to represent the attempt to avoid strokes of an enemy in battle and to inflict injury upon him. It was performed under arms, and the movements and practice nece ary were looked upon as training for service in the field. II. a . Of or pertaining to the Greek martial dance called a pyrrhic. a You have the Pyrrhic dance as yet; Where is the Pyrrhic phalanx gone? Byron, Don Juan, iii. 86 (song). pyrrhic2 (pir'ik), a . and n . [ L . pyrrhic hi us , πυρρίχιος , of or belonging to the pyrrhic (dance) ( ποὺς πυρρίχιος , a pyrrhic foot), ρίχη , α pyrrhic: see pyrrhic1 .] I. a. In pros ., consisting of two short times or syllables: as, a pyrrhic foot; composed of or pertaining to feet so constituted: as, pyrrhic verse; pyrrhic rhythm. II. n . In anc . pros ., a foot consisting of two short times or syllables. A pyrrhic is apparently a disemic is or rhythmic foot ( | (or( | ). The earlier and better ancient authorities (the rhythmic i ans), however, did not acknowledge the existence of a disemic foot, and it seems to have been first introduced into metrical analysis by the grammarians and later metricians. An apparent pyrrhic ((() can occur-(a) at the end of an iambic line(for); (b) as part of proceleusmatics (((((), Ionics (((--or--~~), or pæons (-~~~ ~~~~~-), regarded by later writers as compound feet; and (c) in the so-called basis or poly schematist foot of a log aædic series. Wherever it occurs as a separate foot, it is accordingly a representative of a trisemic foot (or(-). Pyrrhics in continuous composition would constitute proceleusmatic verse, and, although there is little trace of the actual existence of such a meter, it may have been used in single lines or short systems to accompany or suggest the more rapid movements of the war-dance ( pyrrhiel ) from which it probably takes its Also called dibrach (Latin dibrachys or bibrevis ), name. par iambus , and ( single or disemic ) proceleusmatic . The name ἡγεμών or hegemon (leader), often given to the pyrrhic in ancient writers, was apparently suggested by its being placed first in the accepted list of feet. Also pyrrhic hi us . A verse made up of pyrrhics in immediate succe ion. J. Hadley, E ays, p. 99. Pyrrhic3 (pir'ik), a . [L. Pyrrhus , πυρρός , red-haired, reddish: see burrel .] Pertaining to Pyrrhus, especially to Pyrrhus, King of Epirus (see phrase below). -Pyrrhic victory, a succe obtained at too great a cost: in allusion to the reputed exclamation of Pyrrhus, King of Epirus, after the battle of Asculum against the Romans (279 в. с.), "Another such victory and we are lost!" pyrrhicist (pir'i-sist), n. IMG:content-1388.png:[blocks in formation] pyrrhic hi us This word [rěnět] hauing both sillables sliding and slipper make the foote Pir rich i us , because if he be truly vttered, he beares in maner no sharper accent vpõ the one then the other sillable, but be in effect egall in time and tune, as is also the Spondeus. Putten ham , Arte of Eng. Poesie, p. 102. pyrrhite (pir'it), n. [ πυρρός , reddish (see burrel), +-ite2.] A rare mineral, occurring in minute regular reddish-yellow octahedrons. Its composition is not certainly known, but it is supposed to be related to the niobate pyrochlore. pyrrhoarsenite (pir-ō-är'se-nīt), n . [ πυρ ρός , reddish, + E. arsenite .] An arseniate of calcium, magnesium, and manganese, in which the arsenic is in part replaced by antimony. It occurs in embedded grains of a deep yellow ish-red color in Sweden. Pyrrhocoracinæ (pir-ō-kor-a-sīnē), n . pl . [ NL ., Pyrrhocorax ( -corac- ) + -inæ.] A subfamily of Corvid a , named in 1846 by G. R. Gray from the genus Pyrrhocorax ; the choughs. Also called Fregilinæ . pyrrhocoracine (pir-o-kor'a-sin), a. Of or pertaining to the Pyrrhocoracinæ . [NL. (Vieillot, Pyrrhocorax (pi-rok'ō-raks), n . 1816), πυρρός , reddish, + κόραξ , a raven.] A genus of Corvid a , typical of the Pyrrhoco racinæ : the choughs. P. or Fregilus graculus is the common chough, with red bill and feet (see cut under is chough ); P. alpinus is the alpine chough. The genus sometimes restricted to the latter, and then distinguished from Fregilus . Pyrrhocoridæ (pir-ō-kor'i-dē), n. pl . [NL., Pyrrhocoris + -idæ .] A family of heteropterous insects, consisting of large, stout bugs, usually marked with red and black, and containing many tropical and subtropical species. The cotton-stainer of the West Indies and southern United States, Dysdercus suturellus , is an example. Pyrrhocoris (pi-rok'ō-ris), n. [NL. (Fallen, 1841), πυρρός , reddish, + κόρις , a bug.] A genus of true bugs, typical of the family Pyr rhocoridæ. Pyrrhonean (pi-rō'nē-an), a . [L. Pyrrhoncus ( Πύρρων , Pyrrho: see Pyrrhonic ) + -an .] Pyrrhonic. Pyrrhonian (pi-rō'ni-an), n . [ Πύρρων , Pyrrho, + -i- an .] Same as Pyrrhonist . Pyrrhonic (pi-ron'ik), a . [ Πύρρων , Pyrrho, + -ic .] Of or pertaining to Pyrrho (about 360-270 в. с.), а philosopher of Elis, and disci- ple of Anaxarchus; of or pertaining to Pyrrho- nism or skepticism: as, the Pyrrhonic form of doubt. The doctrine of Pyrrho was that there is just as much to be said for as against any opinion whatever; that neither the senses nor the reason are to be trusted in the least; and that when we are once convinced we can know nothing, we cease to care, and in this way alone can at- tain happine . It is said that Pyrrho would take no or- dinary practical precautions, such as getting out of the way of vehicles. Pyrrhonism (pir'ō-nizm), n . [ Πύρρων , Pyrrho, + -ism .] The doctrines of Pyrrho and his followers; absolute skepticism; universal doubt. IMG:content-1389.png:[blocks in formation] Pyrrhopappus (pir-o-pap'us), n . [NL. (A. P. Pyrrhopappus de Candolle, 1838), pus . ] A genus of composite plants of the tribe Cichoriaceæ and subtribe Lactuccæ . It is characterized by its smooth habit, and its nearly cylindrical beaked achenes, covered with many rough and muricate ridges and bearing a reddish pappus which is either per sistent or in falling carries with it a disk from which it grows. There are 3 or, according to some authors, 4 spe cies, all natives of the United States or Mexico. They are annual or perennial herbs, with radical leaves or with alternate stem-leaves, and both entire and deeply cut on the same stem. The yellow flower-heads terminate long erect stalks, and resemble those of the common dandelion, which, however, are readily distinguished by their white pappus. See false dandelion , under dandelion . pyrrhotine (pir'ō-tin), n . [ πυρρός , red dish, + -t- + -ine2 .] Native iron sulphid, a mineral crystallizing in hexagonal prisms and occurring also ma ive, of a bronze color and metallic luster. It is generally slightly magnetic, and is hence called magnetic pyrites . In composition it conforms to the general formula Fe, Sn+1, but varying from Fe788 to Fe11812. The mineral troilite, common in nodules in meteoric iron, may be the same mineral, although to this the formula Fes is generally ascribed. pyrrhotite (pir'ō-tīt), n. [As pyrrhot - ine + -ite2 .] Same as pyrrhotine . pyrrhous (pir'us), a . [ πυρρός , flame-col- ored, yellowish-red, reddish, red-haired, πῦρ , fire. Cf. burrel .] Reddish. 4878 Pyrrhula (pir'ö-lä), n . [NL. (Bri on, 1760), dim. πυρρός , reddish: see pyrrhous .] A genus of Fringillidæ , giving name to the Pyr- rhulinæ , characterized by the very short stout turgid bill; the bullfinches. See cut under bullfinch . Pythagoreanize section Pyrophorum (De Candolle, 1825) includes the pear and the wild pear or choke-pear and allied species. (See pearl.) The section Malus (Tournefort, 1700), the apple, distinguished by a fruit hollowed in at the base, includes P. Malus , for which see apple , apple - tree , and crab2. Το the section Aria (De Candolle, 1825), having only two or three styles and ovate leaves whitened beneath, belongs P. Aria , the beam-tree, with several varieties, including P. Pyrrhulinæ (pir-ö-līnē), n . pl . [NL., Pyrrhula +-inæ.] An undefinable subfamily of Fringil- lidæ , named by Swains on in 1837 from the ge- nus Pyrrhula ; the bullfinches. pyrrhuline (pir'ö-lin), a . [ Pyrrhula + -ine1 .] Resembling a bullfinch, especially in the form of the bill: said of various birds. Pyrrhuloxia (pir-ö-lok'si-ä), n. [NL. (Bona- parte, 1850), Pyrrhula + Loxia : see Pyrrhula , and Loxia , 2.] A genus of Fringillidæ , closely related to Cardinal is , but having a very short stout turgid bill, like a bullfinch's; the Texas cardinals. The species is P. sinuata , having the size and form of the common cardinal, but the plumage gray, pysa (pi'sä), n . Same as pice . beautifully varied with carmine red. Pyrrhura (pi-rö'rä), n. [NL. (Bonaparte, 1856), pysanet, n. Same as pis an2 . πύρρος , reddish, + ουρά , tail.] A genus ren us of pytt, pyttet, n. Obsolete forms of pit1 . intermedia , the Swedish beam-tree. To the section Tormi- naria (De Candolle, 1825), with pinnately lobed leaves and somewhat obconical fruit, belongs P. torminal is , the wild service-tree (see service - tree ). In the section Sorbus (Tournefort, 1700), with compound cymes and pinnate leaves, are included P. domestic a (formerly Sorbus domestic a ), for which see service -tree; P. American a and P. aucuparia , for which see mountain - ash . Another section, Adeno rhachis (De Candolle, 1825), with berry-like fruit, but undivided leaves and glandular petioles, includes P. arbuti folia , for which see chokeberry , and cut under inflores cence. To the section Cydonia (Tournefort, 1700) belong the quinces. (See Cydonia and quince1 .) The genus Mes pilus was also made by Bentham and Hooker a section of Pyrus. See Mespilus and medlar . Also Pirus . pyrył, n. An obsolete form of pirry . Pythagorean (pi-thag-ō-rē'an), a . and n . [L. The Century Dictionary and Cyclopedia Pyrrhurinæ (pir-ö-ri'në), n . pl . [NL., Pyr- rhura + -inæ .] A subfamily of Psittacidæ , named by Garrod from the genus Pyrrhura , re- sembling Arinæ , but having no ambiens. pyrryt, n. An obsolete form of pirry . L. pirum , improp. pyrum , a pear: see pear . Cf. Pyrola .] A genus of gast form shell, whence the name; the fig-shells or pear-shells. (See cut under fig - shell .) Very differ ent limits have been a igned to it. (a) Originally it was named in connection with P. ficus only. (b) Subsequent- ly it was used for many species agreeing with P. ficus in general form, but radically differing in other characters, and consequently afterward generically differentiated. (c) Later it was restricted to the genus now generally called Fulgur and related forms, P. ficus then being called Ficula or Sycotypus . (d) By recent authors it is restricted to P. ficus and closely related species. Also spelled Pirula . Pyrularia (pir-o-laʼri-a), n. chaux, 1803), so called with ref. to the small pear-shaped fruit; pirum , improp. pyrum , a pear: see Pyrula .] A genus of apetalous shrubs of the order Santa laceæ , the sandal- wood family, and of the tribe Osyrideæ . It is characterized by partly diœæcio us flowers, with parallel anther-cells, and a disk with scale-shaped lobes alter- nating with the five stamens, the small clusters of stam- inate flowers racemed toward the ends of the branches, and the pistillate flowers terminal, and few or single. The two species are shrubs or small trees, with thin and veiny alternate short-stalked and minutely pellucid-dotted leaves, small greenish flowers with a short columnar style and capitate stigma, and an inferior one-celled ovary, with two or three ovules hanging from the apex of a free cen- tral placenta. The rather large obovoid fruit is a fleshy drupe, with a hard thin-shelled spherical stone, containing a globose seed with fleshy and very oily albumen. One of the species is North American, for which see oil - nut ( b ); the other, P. edulis , is found in India, a large tree, yielding an edible fruit. Pyrulidæ (pi-röʻli-dē), n . pl . [NL., Pyrula + -idæ .] A family of tænioglo ate gastropods, typified by the genus Pyrula ( d ) or Ficula . The animal has a narrow long head with subulate tentacles and eyes at their external bases, mantle with large lobes reflected the shell, and foot. The shell is pyriform, thin, and generally sculptured with transverse and longitudinal lines. The species are inhabitants of tropical or warm seas. Also Pirulidæ , Ficulidæ , and Sy- cotypidæ . Pyrulinæ (pir-ö-line), n. pl. [ -inx.] 1. The Pyrulidæ as a subfamily Do- liidæ . - 2. A sul subfamily restricted to Pyrula as represented by species of Fulgur and related forms. They are known as fig - shells and pear- pyruline (pirʼö-lin), a . Pertaining to the Pyru- linæ , or having their characters. pyruric (pi-röʻrik), a . [ πῦρ , fire, + οὗρον , urine. Cf. pyro - uric .] In chem ., same as cyanu- Pyrus (pir us), n . [NL. (Tournefort, 1700), prop. Pirus , pir us , improp. pyrus , a pear- tree: see pear1 .] Agenus of rosaceous trees and shrubs, including the apple and pear, the type of the tribe Pomeæ , which takes its name from the pome, the characteristic fruit of this genus. It is characterized by an urn-shaped superior calyx, of which the limb is deciduous or persistent, and by an ovary of from two to five mostly two-ovuled cells, which in fruit are two or one-seeded, separated, cartilaginous-walled, and immediately invested by a fleshy expansion of the disk, the whole being surrounded by the thickened calyx. There are about 50 species, natives of northern temperate regions and extending into the mountains of India. They bear alternate petioled and usually toothed leaves, decid- uous stipules, and numerous cymes of snowy-white or pink flowers, each with five roundish petals and numerous stamens, terminating short spur-like branches. The nu- merous sections are strikingly different in habit, and sev- eral were long received as distinct genera. The typical IMG:content-1391.png:[blocks in formation] Pythagoric