Cygnus (sign us)

[NL., The Century Dictionary and Cyclopedia: The Century dictionary a cylinder, a roller, a leveler, κύλινδρος , α cylinder, a roller, roll, κυλίνδειν , roll, κυλίειν , roll: see cycle . Doublet of cal- ender1, q. v.] 1. In geom .: (a) A solid which may be conceived as generated by the revolution of a rectangle about one of its sides: specifically called a right cylinder. The side of the generating rectangle forms the axis of the cylinder, and the adjacent sides generate circles which form the bases of the cylinder. (b) By exten- sion, any surface generated by a right line mov- ing parallel to itself. cut under carding-machine. (j) In an electrical machine, a barrel of gla . (k) In ordnance , a wooden bucket in which a cartridge is carried from the magazine to the gun. E. H. Knight. (1) A garden or field-roller. E. H. Knight . - 3. In antiq ., a cylindrical or somewhat barrel- shaped stone, bearing a cuneiform inscription or a carved design, worn by the Babylonians, A yrians, and kindred peoples as a seal and amulet. Great numbers of such cylinders have been found, and also of Phenic i an imitations of them.-41. An old portable timepiece of the cla of sun-dials. IMG:content-1925.jpg:[graphic] same as Oliva . Fabric i us , 1823. - Charge-cylin- der, the part of the bore of a cannon occupied by the charge.-Double-acting cylinder, an engine-cylinder in which the stroke of the piston is effective in each direc- tion, instead of only in one direction, as in the single- action cylinder. - Forming-cylinder, in a paper-making machine, the cylinder on which the pulp is collected and formed into a soft web preparatory to drying and hard- ening. - Oblique cylinder. See oblique . - Oscillating cylinder, an engine-cylinder which on trunnions, and the piston-rod of which connects directly to the crank. Vacant cylinder, the portion of the bore of a cannon left free in front of the charge. cylinder-bit (sil'in-der-bit), n. See half -round bit , under bit1 . cylinder-bore (sil'in-der-bor), n. A gun the bore of which is of a uniform diameter through- cylinder-bore (sil'in-der-bōr), v . t . and i.; pret. and pp. cylinder - bored , ppr. cylinder -boring. To bore, as a gun-barrel, in such a manner that the diameter of the bore is uniform throughout. cylinder-car (sil'in-der-kär), n. A hollow cyl- inder for carrying freight, with wheel-ends adapted to run on a railroad-track. The cylin- der rolls with its load, thus doing away with cylinder-cock (sil'in-der-kok), n . the end of a steam-cylinder, through which water of condensation may be blown out, or through which steam may be blown in for warm- ing up the cylinder. For the first purpose it is sometimes made automatic, and often called a safety cylinder - cock . cylinder-cover (sil'in-der-kuv" ér), n. jacket or bagging placed about a steam-cylin- der, to prevent radiation of heat.-2. In steam- engines, the cover secured by bolts to a flange round the top of a cylinder, so as to make it steam-tight. cylinder-desk (sil'in-der-desk), n . A writing- desk with a top somewhat cylindrical in shape, which can be pushed back to allow the desk to be used, or brought forward and locked. Also called a roll - top desk . cylinder-engine (sil'in-der-en"jin), n . In paper- making , a machine in which the pulp is formed in a sheet upon a cylinder and delivered as a web to the dryers. cylinder-escapement (sil'in-der-es-kāp"ment), An escapement for watches invented by IMG:content-1926.jpg:[blocks in formation] cylinder-gage (sil'in-dėr-gāj), n . hollow cylinder, from 3 to 5 calibers in length, accurately turned on the exterior, and used to verify the accuracy of the finished bore of a gun. cylinder-gla (sil'in-dėr-glas), n. Gla blown into the form of a cylinder, then split, and flat- tened into a sheet. The quality is superior to that of crown-gla . See broad gla , under broad . cylinder-grinder (sil'in-der-grinder), n. A machine-tool with automatic traverse-feed for finishing cylindrical gages, such as those of gun-bores. E. H. Knight . cylinder-mill (sil'in-der-mil), n. A grinding- mill in which the action of rollers is substituted for that of face-stones. E. H. Knight. cylinder-milling (sil'in-der-mil"ing), n . See milling. cylinder-port (sil'in-der-port), n . One of the openings through which steam pa es into the cylinder of a steam-engine. cylinder-powder (sil'in-der-pou'dèr), n. Gun- powder the charcoal for which is prepared by distillation in cylindrical iron retorts. cylinder-pre (sil'in-der-pres), n. A printing- machine in which impre ion is made by a IMG:content-1927.jpg:[blocks in formation] IMG:content-1928.png:[ocr errors][subsumed][subsumed][merged small] cylindrellid (sil-in- drel'id), n. A gas- tropod of the family Cylindrellida. Cylindrellidæ (sildrella elegans . (About twice natu- in-drel'i-dē), n. pl. [NL., -ida .] An American family of pulmonate gastropods, typified by the genus Cylindrella ; the cylinder-snails. The shell is cylindric and many-whorled, the last whorl usually detached from the rest and having a circular mouth. The animal has a thin jaw with oblique folds, and the teeth of the radula are peculiar, the central being very narrow, the lateral having the internal and median cusps conflu- ent, and the marginal resembling the lateral in miniature, in the shape of a cylinder, simple in construction, and ad- mitting of greater resistance to the lateral action of the causes of displacement than most others, although more expensive in the matter of fuel. - Cylindrical bone, in an at ., a long bone, as a thigh-bone or humerus, with a more or le cylindrical hollow shaft of compact ti ue, in- closing a medullary cavity, and having cancellous ti ue at each end. Cylindrical lens or mirror, a lens or mirror having one or two cylindrical surfaces. Cylindrical lenses are used in spectacles for the correction of astigmatism. - Cylindrical saw, a saw in the form of a cylinder, with the edge of the open end cut in saw-teeth; a crown-saw: used for cutting staves, fellies, etc., and in surgery. Also called barrel- saw , drum -saw, tub -saw. See cut under crown-saw. - Cylindrical surface, a surface generated by a right line moving parallel to itself. - Cylindrical valve, a valve of cylindrical form on an oscillating axis, serving to open and close ports in the cylindrical case which forms its seat. E. H. Knight. - Cylindrical vaulting (properly semi - cylindrical vaulting ), in arch ., the most ancient mode of true vaulting. Also called a wagon-, barrel-, tunnel- , or cradle-vault. It is a plain half-cylinder, without either groins or ribs, or divided into bays by ares doubleaux, which are usually of square or semicircular section. cylindrically (si-lin'dri-kal-i), adv . In the manner or shape of a cylinder. cylindricity (sil-in-dris'i-ti), n. [= F. cylin- dricité ; as cylindric + -ity.) The character or state of being cylindrical; cylindrical form: as, imperfect cylindricity . IMG:content-1929.png:[blocks in formation] Cylindrophis (si-lin'dro-fis), n. [NL., Gr. κύλινδρος, cylinder, + όφις , serpent.] A genus of serpents, giving name to the family Cylin- drophidæ. C. rufa is a Japanese species. cylix, n. See kylix . Cyllecoraria (sile-kō-rā'ri-ä), n. pl . [NL.] One of the many divisions of the heteropterous family Phytocorida , containing such genera as Hyaliodes. Cyllene (si-lē'nē), n. [NL., Cyllene , the family Cerambycida , which in the form of the body and the style of the markings have a. Cyllene pictus. b. Cyllene robinia. (Natural size.) some resem- blance to the near the base. Two closely similar North American species, C. pictus 2. In organ- building , a mixture-stop of very high pitch.-3. A musical instrument made of a piece of steel wire, in a triangular form, on which are pa ed several rings, which are touched and shifted along the triangle with an iron rod held in the right hand, while the cym- bal is supported in the left by a cord. Also spelled symbal. Imp . Dict. cymbal-doctor (sim bal-dok"tor), n. A teacher whose instruction is like the tinkling of a cym- bal. Compare 1 Cor. xiii. 1. [Rare.] These petty glo es,. so like the quibbles of a court sermon that we may safely reckon. that the hand of some household priest foisted them in, lest the world should forget how much he was a disciple of those cут- bal -doctors. Milton , Eikon ok las tes, viii. cymbaled, cymbal led (sim'bald), a . [ cym- [Rare.] in autumn. Both species are, in the larval state, very destructive to the trees they inhabit. Harris , Ins. Inj. to cyma (si'ma), n.; pl. cyme (me). [NL. (ef. L. сута , сита , a sprout, a hollow sphere), κύμα , a wave, a swell, billow, a waved ogee or lit. contain. See cyme .] 1. In arch ., a member or mold- curve of contrary flexure. Of this molding there are two (sometimes called beak - molding ), which is concave at the top and convex at the bottom; and cyma revers a , or Lesbian cyma, which is convex at the top and concave at the bottom. Both kinds of the cyma are also called ogee . Also written суте , сіта . 2. In bot ., same as cyme. - 3. [ cap .] [NL.] Same as Cuma , 2. cymagraph (si'ma-graf), n. [ γράφειν , write.] A form of sculpture-copier or pantograph for tracing the outlines of objects in relief, particularly adapt- ed for taking profiles of architectural moldings. cymaphen (si'ma-fen), n. [Irreg. κύμα , a wave, + φαίνειν , show.] An apparatus in a tele- phone for receiving transmitted electric waves. See simar . cymar, n. cymatium (si-ma's hi-um), n.; pl. cymatia (-a). [L., κυμάτιον , a waved molding, κύμα (τ-), a wave, etc.: see cyma .] In arch ., a cyma; a molding composed of the cyma. Most of the capitals here are of the Corinthian order; and I took notice of the capitals of some pilasters, con- sisting of a cymatium , two lists, and flutes about a foot long, and under them a quarter round, adorned with eggs and darts. Pococke , Description of the East, II. ii. 88. Cyma to gaster (sima-to-gaster), n. [NL., κύμα (τ-), fetus, + γαστήρ , belly.] A genus of surf-fishes, of the family Embiotocida. C. ag- greg at us is an abundant fish of the Pacific coast of the United States, known as the shiner , minny , and sparada . cyma to lite (si-mat'ō-lit), n. [ λίθος , stone.] A mineral substance bea pearing in white ma es with a delicate wavy, IMG:content-1930.jpg:[blocks in formation] And highest among the statues, statue-like, Between a cymbal'd Miriam and a Jael, With Psyche's babe, was Ida watching us. cymbaler, cymballer (sim'bal-er), n . [ bal +-er1.] One who performs on a cymbal; a cymbalist. Fallows . cymbalist (sim'bal-ist), n. [ cymbaled , cym- baler . cymbate (sim'bāt), a. [L. cymba , a boat (see cymba), + -atel.] Boat-shaped, as that form of sponge-spicule called a cymba. Sollas . sack: see cymbal and comb2.] 1. A genus of gastropods, of the family Volutida. The shell is ob- mis, and the pillar four-plait- ed. They are found on the Af- IMG:content-1931.jpg:[graphic] The back or curve is called the keel or trop is ; the points are the prows or prore . The proræ when lobed or alate are termed pteres . Two varieties of the cymba are known as the pterocymba and oöcymba . See these words. 2. [ cap .] In conch ., same as Cymbium , 1. cymbæform (sim'bē-fôrm), a . form . cymbal (sim'bal), n . [ cimbale , cymbale , cimbale , F. cymbale = Sp. cimbalo = Pg. cymbalo = It. cimbalo , cembalo = D. cimbaal = G. Dan. cymbel = Sw. cymbal , cymbalum , κύμβαλον , a cymbal, κύμβος , κύμβη , the hollow of a ve el, bowl, basin, cup, boat, knapsack, etc., = Skt. kumbhā , kumbhi , a pot, jar: see comb2 . Cf. chimel .] 1. One of a pair of concave plates of bra or bronze which, when struck together, produce a sharp, ringing sound: usually in the plural. Their size varies from little metallic castanets or finger-cymbals to large orchestral cymbals made to be used with the large or long drum. Instruments of the cymbal family are known from the earliest historic times. They are specially useful for rhythmic effect, though some ex- periments have been made with plates so shaped and used as to give tones of definite pitch. I am become as sounding bra , or a tinkling cymbal . 1 Cor. xiii. 1. IMG:content-1932.jpg:[blocks in formation] 2. In entom ., a genus of beetles, of the fam- ily Trogositida. Seidlitz, 1873.-3. [l. c.] In Gr. antiq ., a form of vase of deep and upright shape, without foot or handles; a bowl. cymblin, cymbling (sim'blin, -bling), n. Cymbulia in front and square behind. C. proboscidea is an example.