n. Same as Anthokyan. [ 1913 Webster ]

n. [ Aurum + cyanide. ] (Chem.) A double cyanide of gold and some other metal or radical; -- called also cyanaurate. [ 1913 Webster ]

n. See Dicyanide. [ 1913 Webster ]

n. [ Cf. F. cuanate. See Cyanic. ] (Chem.) A salt of cyanic acid. [ 1913 Webster ]

Ammonium cyanate (Chem.), a remarkable white crystalline substance, NH4.O.CN, which passes, on standing, to the organic compound, urea, CO.(NH2)2. [ 1913 Webster ]

n. See Aurocyanide. [ 1913 Webster ]

a. [ Gr. kya`neos dark blue. ] Having an azure color. Pennant. [ 1913 Webster ]

a. [ Gr. ky`anos a dark blue substance: cf. F. cyanique. Cf. Kyanite. ] 1. Pertaining to, or containing, cyanogen. [ 1913 Webster ]

2. Of or pertaining to a blue color. [ 1913 Webster ]

Cyanic acid (Chem.), an acid, HOCN, derived from cyanogen, well known in its salts, but never isolated in the free state. --
Cyanic colors (Bot.), those colors (of flowers) having some tinge of blue; -- opposed to xanthic colors. A color of either series may pass into red or white, but not into the opposing color. Red and pure white are more common among flowers of cyanic tendency than in those of the other class. [ 1913 Webster ]

n. [ Cf. F. cyanide. See Cyanic. ] (Chem.) A compound formed by the union of cyanogen with an element or radical. [ 1913 Webster ]

n. [ See Cyanic. ] (Chem.) The blue coloring matter of flowers; -- called also anthokyan and anthocyanin. [ 1913 Webster ]

n. (Chem.) One of a series of artificial blue or red dyes obtained from quinoline and lepidine and used in calico printing. [ 1913 Webster ]

n. [ See Cyanic. ] (Min.) A mineral occuring in thin-bladed crystals and crystalline aggregates, of a sky-blue color. It is a silicate of aluminium. [ Written also kyanite. ] [ 1913 Webster ]

pl. [ from the pigment phycocyanin. ] any of a group of photosynthetic autotrophic prokaryotic microorganisms possessing characteristics of both bacteria and plants. When classed as bacteria, they are assigned to the Cyanobacteria; when classed as plants, they are assigned to the Cyanophyta. They were earlier named blue-green algae, a term less used now in technical discussions. Since the chlorophyll within the cyanobacteria is diffused throughout the cell, rather than being contained in chloroplasts, they are no longer thought of as true plants. [ PJC ]

n. [ Gr. ky`anos a dark blue substance + -gen: cf. F. cyanogène. So called because it produced blue dyes. ] (Chem.) A colorless, inflammable, poisonous gas, C2N2, with a peach-blossom odor, so called from its tendency to form blue compounds; obtained by heating ammonium oxalate, mercuric cyanide, etc. It is obtained in combination, forming an alkaline cyanide when nitrogen or a nitrogenous compound is strongly ignited with carbon and soda or potash. It conducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized. [ 1913 Webster ]

☞ Cyanogen is found in the commercial substances, potassium cyanide, or prussiate of potash, yellow prussiate of potash, Prussian blue, Turnbull's blue, prussic acid, etc. [ 1913 Webster ]

n. [ Gr. ky`anos a dark blue substance + -meter: cf. F. cyanomètre. ] An instrument for measuring degress of blueness. [ 1913 Webster ]

n. [ Gr. ky`anos a dark blue substance + pa`qos affection. ] (Med.) A disease in which the body is colored blue in its surface, arising usually from a malformation of the heart, which causes an imperfect arterialization of the blood; blue jaundice. [ 1913 Webster ]

n. [ Gr. ky`anos a dark blue substance + fy`llon leaf. ] (Bot.) A blue coloring matter supposed by some to be one of the component parts of chlorophyll. [ 1913 Webster ]

a. [ See Cyanic. ] Rendered blue, as the surface of the body, from cyanosis or deficient aëration of the blood. [ 1913 Webster ]

‖n. [ NL. See Cyanic. ] (Med.) A condition in which, from insufficient aëration of the blood, the surface of the body becomes blue. See Cyanopathy. [ 1913 Webster ]

n. [ See Cyanic. ] (Min.) Native sulphate of copper. Cf. Blue vitriol, under Blue. [ 1913 Webster ]

a. (Med.) Relating to cyanosis; affected with cyanosis; as, a cyanotic patient; having the hue caused by cyanosis; as, a cyanotic skin. [ 1913 Webster ]

n. [ Cyanide + -type. ] A photographic picture obtained by the use of a cyanide. [ 1913 Webster ]

n. (Chem.) A salt of cyanuric acid. [ 1913 Webster ]

n. (Chem.) A cyanide. [ Obs. ] [ 1913 Webster ]

a. [ Cyanic + uric: Cf. F. cyanurique. ] (Chem.) Pertaining to, or derived from, cyanic and uric acids. [ 1913 Webster ]

(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. [ 1913 Webster ]

n. [ Pref. di- + cyanogen. ] (Chem.) A compound of a binary type containing two cyanogen groups or radicals; -- called also bicyanide. [ 1913 Webster ]

n. [ Ferri- + cyanate. ] (Chem.) A salt of ferricyanic acid; a ferricyanide. [ 1913 Webster ]

a. [ Ferri- + cyanic. ] (Chem.) Pertaining to, or derived from, a ferricyanide. [ 1913 Webster ]

Ferricyanic acid (Chem.), a brown crystalline substance, H6(CN)12Fe2, obtained from potassium ferricyanide, and regarded as the type of the ferricyanides; -- called also hydro-ferricyanic acid, hydrogen ferricyanide, etc. [ 1913 Webster ]

n. [ Ferri- + cyanide. ] (Chem.) One of a complex series of double cyanides of ferric iron and some other base. [ 1913 Webster ]

Potassium ferricyanide (Chem.), red prussiate of potash; a dark, red, crystalline salt, K6(CN)12Fe2, consisting of the double cyanide of potassium and ferric iron. From it is derived the ferrous ferricyanate, Turnbull's blue. [ 1913 Webster ]

n. [ Ferro- + cyanate: cf. F. ferrocyanate. ] (Chem.) A salt of ferrocyanic acid; a ferrocyanide. [ 1913 Webster ]

a. [ Ferro- + cyanic: cf. F. ferrocyanique. ] (Chem.) Pertaining to, derived from, or designating, a ferrocyanide. [ 1913 Webster ]

ferrocyanic acid (Chem.), a white crystalline substance, H4(CN)6Fe, of strong acid properties, obtained from potassium ferrocyanide, and regarded as the type of the ferrocyanides; -- called also hydro-ferrocyanic acid, hydrogen ferrocyanide. etc. [ 1913 Webster ]

n. [ Ferro- + cyanide. ] (Chem.) One of a series of complex double cyanides of ferrous iron and some other base. [ 1913 Webster ]

Potassium ferrocyanide (Chem.), yellow prussiate of potash; a tough, yellow, crystalline salt, K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate, prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal matter containing nitrogen, as horn, leather, blood, etc., in iron pots. [ 1913 Webster ]

n. [ Haema- + Gr. ky`anos a dark blue substance. ] (Physiol. Chem.) A substance found in the blood of the octopus, which gives to it its blue color. [ 1913 Webster ]

☞ When deprived of oxygen it is colorless, but becomes quickly blue in contact with oxygen, and is then generally called oxyhaemacyanin. A similar blue coloring matter has been detected in small quantity in the blood of other animals and in the bile. [ 1913 Webster ]

n. Same as Haemacyanin. [ 1913 Webster ]

n. (Chem.) See Hydrocyanide. [ 1913 Webster ]

a. [ Hydro-, 2 + anic: cf. F. hydrocyanique. ] (Chem.) Pertaining to, or derived from the combination of, hydrogen and cyanogen. [ 1913 Webster ]

Hydrocyanic acid (Chem.), a colorless, mobile, volatile liquid, HCN, having a characteristic peach-blossom odor. It is one of the most deadly poisons. It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids. Called also prussic acid, hydrogen cyanide, etc. [ 1913 Webster ]

n. (Chem.) A compound of hydrocyanic acid with a base; -- distinguished from a cyanide, in which only the cyanogen so combines.

n. [ Hydro-, 2 + ferricyanic. ] (Chem.) Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen; as, hydroferricyanic acid. See Ferricyanic. [ 1913 Webster ]

a. [ Hydro-, 2 + ferrocyanic. ] (Chem.) Pertaining to, or containing, or obtained from, hydrogen, ferrous iron, and cyanogen; as, hydroferrocyanic acid. See Ferrocyanic. [ 1913 Webster ]

a. [ Iso- + cyanic. ] (Chem.) Designating an acid isomeric with cyanic acid. [ 1913 Webster ]

Isocyanic acid, an acid metameric with cyanic acid, and resembling it in its salts. It is obtained as a colorless, mobile, unstable liquid by the heating cyanuric acid. Called technically carbimide. [ 1913 Webster ]

a. [ Iso- + cyanuric. ] (Chem.) Designating, or pertaining to, an acid isomeric with cyanuric acid, and called also fulminuric acid. See under Fulminuric. [ 1913 Webster ]

n. (Chem.) A salt of isosulphocyanic acid. [ 1913 Webster ]

a. (Chem.) Pertaining to, or designating, an acid, HNCS, isomeric with sulphocyanic acid. [ 1913 Webster ]

n. [ Gr. o'i^nos wine + ky`anos a dark-blue substance. ] (Chem.) The coloring matter of red wines. [ 1913 Webster ]

{ } n. [ Oxy- (a) + haemacyanin, haemocyanin. ] (Physiol. Chem.) See Haemacyanin. [ 1913 Webster ]

n. [ Pref. para- + cyanogen. ] (Chem.) A polymeric modification of cyanogen, obtained as a brown or black amorphous residue by heating mercuric cyanide. [ 1913 Webster ]

n. (Chem.) A salt of persulphocyanic acid. [ R. ] [ 1913 Webster ]

a. (Chem.) Pertaining to, or designating, a yellow crystalline substance (called also perthiocyanic acid), analogous to sulphocyanic acid, but containing more sulphur. [ 1913 Webster ]

n. (Chem.) An orange-yellow substance, produced by the action of chlorine or boiling dilute nitric acid and sulphocyanate of potassium; -- called also pseudosulphocyanogen, perthiocyanogen, and formerly sulphocyanogen. [ 1913 Webster ]

n. (Chem.) Same as Persulphocyanogen. [ 1913 Webster ]