Defn: An instrument for exhibiting certain chromatic effects of light (depending upon the persistence of vision and mixture of colors) by means of rapidly rotating disks variously colored.
2. A device in a magic lantern or stereopticon to produce kaleidoscopic effects.
CHROMATYPE
Chro"ma*type, n. Etym: [Gr.
1. (Photog.)
Defn: A colored photographic picture taken upon paper made sensitive with potassium bichromate or some other salt of chromium.
2. The process by which such picture is made.
CHROME
Chrome, n.
Defn: Same as Chromium. Chrome alum (Chem.), a dark violet substance, (SO4)3Cr2.K2SO4.24H2O, analogous to, and crystallizing like, common alum. It is regarded as a double sulphate of chromium and potassium. — Chrome green (a) The green oxide of chromium, Cr2O3, used in enamel painting, and glass staining. (b) A pigment made by mixing chrome yellow with Prussian blue. — Chrome red, a beautiful red pigment originally prepared from the basic chromate of lead, but now made from red oxide of lead. — Chrome yellow, a brilliant yellow pigment, PbCrO4, used by painters.
CHROME STEEL
Chrome steel.
Defn: Same as Chromium steel, under Steel.