CYANOGEN Cy*an"o*gen (s-n"-jn), n. Etym: [Gr. -gen: cf. F. cyanogène. So called because it produced blue dyes.] (Chem.)

Defn: 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.

Note: 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.

CYANOMETER
Cy`a*nom"e*ter (s`-nm"-tr), n. Etym: [Gr. -meter: cf. F. cyanomètre.]

Defn: An instrument for measuring degress of blueness.

CYANOPATHY
Cy`a*nop"a*thy (-np"-th), n. Etym: [Gr. (Med.)

Defn: 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.

CYANOPHYLL
Cy*an"o*phyll (s-n"-fl), n. Etym: [Gr. (Bot.)

Defn: A blue coloring matter supposed by some to be one of the component parts ofchlorophyll.

CYANOSED
Cy"a*nosed (s"-nst), a. Etym: [See Cyanic.]