Cy`a*nu"ric (s?`?-n?"r?k), a. [Cyanic + uric: Cf. F. cyanurique.] (Chem.) Pertaining to, or derived from, cyanic and uric acids.
Cyanuric acid (Chem.), an organic acid, C3O3N3H3, first obtained by heating uric acid or urea, and called pyrouric acid; afterwards obtained from isocyanic acid. It is a white crystalline substance, odorless and almost tasteless; -- called also tricarbimide.
Cy*ath"i*form (s?-?th"?-f?rm), a. [L. cyathus a cup (Gr, ky`aqos) - form:cf. F. cyathiforme.] In the form of a cup, a little widened at the top.
Cy*ath"olith (s?-?th"?-l?th), n. [Gr. ky`aqos a cup + -lith.] (Biol.) A kind of coccolith, which in shape resembles a minute cup widened at the top, and varies in size from &frac1x6000; to &frac1x8000; of an inch.
Cy`a*tho*phyl"loid (s?`?-th?-f?l"loid), a. [NL. cyathophyllum, fr. Gr. ky`aqos a cup + fy`llon a leaf.] (Paleon.) Like, or pertaining to, the family CyathophyllidŠ.
Cy`a*tho*phyl"loid, n. (Paleon.) A fossil coral of the family CyathophyllidŠ; sometimes extended to fossil corals of other related families belonging to the group Rugosa; -- also called cup corals. Thay are found in paleozoic rocks.
Cy"cad (sī"kăd), n. (Bot.) Any plant of the natural order CycadaceŠ, as the sago palm, etc.
Cyc`a*da"ceous (s?k`?-d?"sh?s or s?`k?-), a. (Bot.) Pertaining to, or resembling, an order of plants like the palms, but having exogenous wood. The sago palm is an example.
Cy"cas (s?"k?s), n. [Of uncertain origin. LinnŠus derives it from one of the "obscure Greek words."] (Bot.) A genus of trees, intermediate in character between the palms and the pines. The pith of the trunk of some species furnishes a valuable kind of sago.
Cyc"la*men (s?k"l?-m?n), n. [NL., fr. Gr. kykla`minos, kyklami`s.] (Bot.) A genus of plants of the Primrose family, having depressed rounded corms, and pretty nodding flowers with the petals so reflexed as to point upwards, whence it is called rabbits' ears. It is also called sow bread, because hogs are said to eat the corms.
Cyc"la*min (-m?n), n. A white amorphous substance, regarded as a glucoside, extracted from the corm of Cyclamen EuropŠum.
Cy"clas (s?"kl?s), n. [Cf. Ciclatoun.] A long gown or surcoat (cut off in front), worn in the Middle Ages. It was sometimes embroidered or interwoven with gold. Also, a rich stuff from which the gown was made.
Cy"cle (s?"k'l), n. [F. ycle, LL. cyclus, fr. Gr. ky`klos ring or circle, cycle; akin to Skr. cakra wheel, circle. See Wheel.] 1. An imaginary circle or orbit in the heavens; one of the celestial spheres. Milton.
2. An interval of time in which a certain succession of events or phenomena is completed, and then returns again and again, uniformly and continually in the same order; a periodical space of time marked by the recurrence of something peculiar; as, the cycle of the seasons, or of the year.
Wages . . . bear a full proportion . . . to the medium of provision during the last bad cycle of twenty years.
Burke.