N. E. D.

amphichromatic (am"fi-kro-mat'ik), a. [ ἀμφί , on both sides, + χρώμα (τ-), color: see chro- matic .] Reacting both as an acid and as an alkali upon colors used as chemical tests. Amphicœlia (am-fi-sēʻli-ä), n . pl . [NL., Gr. ἀμφίκοιλος, hollow all round: see amphicælous .] 1. In Owen's cla ification of reptiles, a sub- order of Crocodilia , including the extinct croco- diles which have amphicœlous vertebræ, as members of the genus Teleosaur us .-2. [Used as a singular.] A genus of bivalve mollusks. James Hall , 1867. amphicœlian (am-fi-sē lous; having amphicælous vertebræ; pertain ing to the Amphicœlia . Amphicœlias (am-fi-se'li-as), n. [NL., amphicælous .] A genus of fo il dinosaurian reptiles with am- a mph i cur to us (am-fi-ker'tus), a. See amphi- cyrtous. amphicyon (am-fis'i-on), n. [NL., ἀμφί , on both sides, + κύων , dog, = E. hound , q. v.] A large fo il carnivorous quadruped, whose teeth combine the characters of those of the dogs ( Canida ) and of the bears (Urside). It occurs principally in the Miocene Tertiary formation. amphicyrtous (am-fi-ser'tus), a. [ κυρτος , curved on each side like the moon in its 3d quarter, gibbous, ἀμφί , on both sides, + κυρ- τός, curved: see curve .] Curved on both sides; gibbous. Also written a mph i cur to us. N. E. D. amphicytula (am-fi-sit'u-la), n.; pl. amphicy- tulæ (-lē). [NL., amphi- + cytula , NL. dim. of Gr. κύτος , a hollow.] In embryol ., the parent- cell (cytula) which results from that stage in the development of a holoblastic egg known as an amphimonerula, by the re-formation of a nu- cleus, and which pa es by total but unequal segmentation of the vitellus (yolk) to the succes- sive stages known as a mph i morula, amphiblas- tula, and a mph i gastrula. See these words. The human egg is an example. This is the usual form of egg in mammals and sundry other animals. See gastrulation . amphidt, amphidet (am'fid, -fid), a. [ ἀμφί , both, +-id2.] A term applied by Berzelius to posed to have been able to browse on tree-tops 30 feet high. A. fragillimus , another species, is supposed to have ex- ceeded A. alt us in length. E. D. Cope , 1877. cœlus, ἀμφίκοιλος , hollow all round, hollow at both ends, ἀμφί , at both ends, + κοῖλος , hollow: see cœliac .] In an at . and zoöl . , hollowed at both ends: said of vertebræ the centra or bodies of which are biconcave. This is the usual character of the vertebræ of fishes, and also of the extinct crocodiles ( Telcosauridæ , Belodontidæ ), and of some birds of the Creta- ceo us period, as of the genus Ichthyornis ( Odontotorma ). Amphicoma (am-fik'ō-mä), n. [NL., ἀμφί , around, + κόμη, hair.] A genus of lamellicorn beetles, of the family Scarabæida . The mandibles in this genus are without teeth on the inner edge, the claveola of the antennæ are globular, and the legs are ordinary. Amphicondyla (am-fi-kon'di-lä), n . pl . [NL., mod. condyle.] A name given to the Mamma- ἀμφί , on both sides, + κόνδυλος , a knuckle, opposed to Monocondyla (which see). ἀμφί , around, + κτείς (κτεν-), a comb.] A mph i ctene (am-fik te-në), n. [NL., Gr. .] A genus of tubicolous worms, order Cep halo branchia, cla Annelid a , type of the family Amphicteni- a mph i diarthrodial (am fi-di-är-thrō'di-al), a . [NL. a mph i diarthrosis , after arthrodial .] Of or pertaining to a mph i diarthrosis. a mph i diarthrosis (am"fi-di-är-thrō's [NL., διάρθρωσις , dæ : equivalent to Pectin aria . Amphictenidæ (am-fik-ten'i-dē), n . pl . [NL., A mph i ctene + -ida .] A famil cep halo branchiate annelids, represented by the genus A mph i ctene or Pectin aria . amphictyon (am-fik'ti-on), n. tyones , ἀμφικτύων (Demosthenes), common- ly in pl. ἀμφικτύονες, more correctly ἀμφικτίονες, lit. dwellers wellers around, neighbors, ἀμφί , around, + *κτίονες (only in this word and περικτίονες , of same sense), pl. of * κτίων , ppr., κτι- , dwell (> κτίζειν, τίζειν , people, establish, found), = Skt. kshi , dwell, inhabit.] In Gr . hist ., a deputy to an amphictyonic council, especially the Del- phic: most commonly used in the plural for the council itself, or the body of deputies (often with a capital). The Century Dictionary and Cyclopedia: Dictionary A mph i lept us (am-fi-lep'tus), n. [NL., Gr. ἀμφί , on both sides, + λεπτός , small, fine, delicate.] A genus of ciliate infusorians, of the family Tra- chelocercidæ , having numerous contractile vac- uoles in two longitudinal series. A. gigas , one of the largest known infusorians, has a lengthened com- Amphioxus (am-fi-ok's us), n. [NL., ὀξύς , sharp: see oxygen.] oxygen.] The lancelets, the typical genus of the family Am- phioxide , whose body is compre ed and tapers to a point at each end: a synonym of Branch i- ostoma (which see). See also cut under lance- let. pre ed form with a long neck, and the mouth near the amphipneust (am'fip-nūst), n. base of the proboscis. (-jiz). [Gr. ἀμφιλογία, doubt, debate, ἀμφί , on both sides, + λέγειν, speak: see -ology .] Ambiguity; amphibology. amphimacer (am-fim'a-ser), n. [ amphi- macrus, ἀμφίμακρος , long on both sides, μακρός , long: see macron . Cf. amphibrach.] In pros ., a foot of three syl- lables, the middle one short and the others long, as in Latin cast it as : the opposite of am- phibrach. A mph i monad ide (am fi-mō-nad'i-dē), n. pl. [NL., Amp him on as + -ida.] A family of na- ked, free-swimming or sedentary, biflagellate infusorians, typified by the genus Amp him on as . When sedentary they are attached by a prolongation of the posterior extremity or by a caudal filament. The two flagella are terminal and of equal size; there is no distinct oral aperture, food being taken in at any point of the periphery of the body. Amp him on as (am-fi-mon'as), n. [NL., μονάς (μοναδ-), one, a unit: see monad .] The typical genus of Am- phi mon a didæ. amphimonerula (am fi-mō-ner'ö-lä), n.; pl. am- phimonerula (-lē). [NL., amphi- + monerula .] In em embryol ., the monerula-stage of a holoblastic egg which undergoes unequal segmentation or cleavage of the vitellus (yolk), and becomes words). It is a cytode which includes formative yolk at one pole and nutritive yolk at the other; the two being, amphigene (am'fi-jēn), n . [ genus ): of cla ification, superfamily ἀμφι, on both sides, + μορφή , form. In Huxley's mognathous carinate birds: so called because intermediate between the anserine birds and the storks. It contains only the flamingos, Phœnicopteridæ (which see). See cut under flamingo . The term is zoologi- cally equivalent to Odontoglo æ of Nitzsch, of prior date. a mph i morphic (am-fi-môr'fik), a. [As Amphi- morphe + -ic.] Having the character of or pertaining to the A mph i morph a . a mph i morula (am-fi-mor'ö-lä), n.; pl. amphi- morulæ (-lē). [NL., amphi- + morula .] In embryol., the morula, or mulberry-like ma , which results from the total but unequal seg- mentation of the vitellus (yolk) in that stage in the development of a holoblastic egg known as an amphicytula; a solid and generally globular ma of cleavage-cells which are not all alike. Further stages of development are the amphiblastula.and the a mph i gastrula. The human egg is an example. A mph in eur a (am-fi-nu'rä), n . pl . [NL., νεῦρον , sinew, nerve.] A cla or phylum of Vermes constituted by the genera Neomenia and Cha to derma , together with the Chitonida , the latter being removed from the Mollusca and a ociated with the genera named on account of the similarity in the nervous system. H. von Ihering , 1878. Amphinome (am-fin'ō-mē), n. [NL., ἀμφί , around, + νομή , a feeding, νέμεσθαι , feed, pas- ture, act.] A genus of chætopodous worms, giving name to the family A mph i no mid a . Also written Amphinoma . Amphinomeæ (am-fi-no'mē-ē), n. pl . [NL.] IMG:content-0654.png:[blocks in formation] in higher animals. included in the head. Amp hip no us (am-fip'no-us), n. [NL., -πνόος , breathing, Amphipnoida . amphipod (am'fi-pod), a. and n. [ phipus ( -pod- ), having feet in both directions, foot , q. v.] I. a. Same as amphipodous . II. n. An amphipod an; one Amphipod a . Amphipod a (am-fip'o-da), 'ō-da), n. pl . [NL., neut. pl. of amphipus IMG:content-0655.png:[blocks in formation] a mph i podal (am-fip'ō-dal), a. [ amphipod + -al . ] Same as amphipodous . amphipod an (am-fip'o-dan), a . and n. phipod + -an .] I. a. Same as amphipodous . II. n. An amphipod; one of the Amphipod a . amphipod i form (am-fi-pod'i-form), a . [ am- phipod +-i- form .] Resembling a sand-hopper in form; formed like an amphipod. Kirby and Spence , 1828. amphipodous (am-fip'o-dus), a . [ amphipod +-ous.] Having feet in both directions; spe- the absence of limbs, and able to move either backward or forward. cifically, of or pertaining to the Amphipod a, sluggish and mostly nocturnal, of snake-like aspect from Equivalent forms are amphipod , a mph i podal , amphipod an . Amphiporide (am-fi-por'i-dē), n. pl. [NL., Amp hip or us + -ida .] In zoöl ., a family of rhyn- the proboscis armed with stylette which ang wanting in the other Rhynchocæla . Also called amphisaurid (am-fi-sa'rid), n. A dinosaurian reptile of the family Amphisaurida . Amphisauridæ (am-fi-sa'ri-dē), n . pl . [NL., A mph is a urus + -ida .] A family of dinosau- Amphisbænia (am-fis-bē'ni-ä), n. pl. [NL., Amphisbæna .] A superfamily group of lacer- tilians: a synonym of Amphisbænoida . amphisbænian (am-fis-beni-an), a . and m. [ amphisbæna + -ian.] I. a. Of or pertaining to the amphisbæna, or to the Amphisbænoida . amphisbænic (am-fis-be'nik), a. [ amphis- bæna + -ic.] Like the amphisbæna; moving backward or forward with equal ease. An Yoked to it by an amphisbænic snake. Shelley, Prom. Unbound, iii. 4. amphisbænid (am-fis-be'nid), n. Amphisbænidæ (am-fis-bē'ni-dē), n . pl . [NL., Amphisbæna + idæ.] The typical family of the group Amphisbænoida . It embraces sluggish and mostly nocturnal snake-like lizards, such as those of the genus Amphisbæna , which are limble , and are thus distinguished from the Chirotidæ (which see). [NL., divisions of existing Lacer til i a (lizards), differ- the Chamæleonida ing from all others except in bital septum of the skull. The position of the quad- rate bone is peculiar; the skull in general resembles that of an ophidian; the vertebræ are procœlous, and have neither zygantrum nor zygosphene; there is no sacrum; and all but one or two of the precaudal vertebræ bear ribs. The bodies of these lizards are completely snake- like. All the representatives of the group are limble , excepting members of the genus Chirotes , which have a pair of small pectoral limbs. The tail is extremely short, so that the vent is near the end of the body. integu- ment is not scaly. IMG:content-0656.png:[ocr errors] Amphisbænoidea (am"fis-be-noi'de-a), n. pl . Same as Amphisbænoida . amphisbænous (am-fis-bē'nus), a. Same as amphisbænic . amphis amphiscii (am-fish'i-i), n. pl . [NL., ἀμφίσκιοι , throwing a shadow both ways, σκιά , shadow. Cf. antiscii .]. In geog ., the inhabitants of the ertropical regions, whose shadows at noon are cast in one part of the year to the north and in the other part to the south, according as the sun is in the southern or the northern signs. a mph i sient, a. [For amphiscien = E. amphis- cian , as adj.] In her . , double; having two heads. Amphisile (am-fis'i-lē), n. [NL., ἀμφί or άμφις, around; it is uncertain what the last two syllables were intended to represent.] Agenus of fishes, typical of the family A mph is i lid a , formerly referred to the sea-snipes, Fistulariida or Aulos to mid a , and by Günther to the Centris- cid a . a mph is i lid (am-fis'i-lid), n. ily ily A mph is i lid a . Amph Amphisilide (am-fi-sili-de), IMG:content-0657.png:[blocks in formation] worms, of which the genus A mph is to mum is the type. Other genera are Dip los to mum and Gas- trodiscus . amphistomoid (am-fis'tō-moid), a. [ Amphi- stomum + -oid.] Of or pertaining to the family amphistomous. (am-fis'tō-mus), -mus), a. [ am- ἀμφίστομος, with double mouth, ides, + στόμα , mouth: see stoma . ] ἀμφί , on both sides, + στόμα, Having a mouth-like orifice at either end of the body, by which to adhere to the intestines of animals, as some trematode parasitic worms; IMG:content-0658.png:[graphic][merged small][merged small] IMG:content-0659.png:[blocks in formation] the extension of the dermal armature. It is a most re- mark able type, and exceptional among fishes on account of the peculiar development of the skeleton as a sort of shell around the body. The body is almost transparent, and the organs, especially the air-bladder, can be dis- tinctly seen through it. The habits of the family are un known. Several species inhabit the high seas. a mph is mela (am-fis-mē'lä), n. [NL., μήλη , a surgical instrument, a probe.] A double-edged surgical knife. amphispermium (am-fi-sperm i-um), n.; pl. am- phi sperm i a (-a). [NL., ἀμφί , on both sides, + σπέρμα , seed.] In bot . , a term proposed for an indehiscent one-seeded pericarp; an achenium. a mph is to me (am'fi-stom), n. [ Amphi- stomum.] An animal of the genus A mph is to- mum or family A mph is to mid a . a mph is to mid (am-fis'tō-mid), n. One of the A mph is to mid a. A mph is to midæ (am-fi-stom'i-dē), n. pl . [NL., -ida .] A family of trematode 3. The uppermost gallery of a modern theater. amphitheatral (am-fi-the'a-tral), a . [L. am- phi theatral is , a mph i the at rum , amphitheater: see amphitheater .] Same as amphitheatrical . amphitheatre, n. See amphitheater . amphitheatric (am"fi-the-at'rik), a. amphitheatrical . amphitheatrical (am"fi-the-at'ri-kal), a . [L. amphitheatric us, a mph i the at rum : see amphi- theater .] 1. Of, pertaining to, or resembling an amphitheater. amphitheatrically amphitheatrically (am fi-the-at'ri-kal-i), adv. In an amphitheatrical manner or form. amphithect (am'fi-thekt), a. [ In the highest and most complicated group, the Hete rost aura, the basal polygon is no longer regular but am phithect. Ctenophores furnish examples of eight sided amphithect pyramids. Encyc. Brit ., XVI. 844. a mph i there (am'fi-ther), n. A fo il animal of the genus Amphitherium . A mph it her i a (am-fi-the'ri-ä), n. pl. [NL., pl. of Amphitherium.] A group of mammals, represented by the genus Amphitherium. amphitheriid (am-fi-the'ri-id), n. A fo il animal of the family Amphitheriidæ. Amphitheriidæ (am"fi-the-ri'i-dē), n. pl. [NL.,