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Of or pertaining to photochromy; produced by photochromy.

Polychromatic.

Pertaining to the art of stereochromy; produced by stereochromy. -- Ste`re*o*chro"mic*al*ly, adv.

Of, pertaining to, or designating, an acid extracted from cacao butter (from the Theobroma Cacao), peanut oil (from Arachis hypogæa), etc., as a white waxy crystalline substance.

If, pertaining to, or consisting of, three colors or color sensations.

A salt containing two parts of chromic acid to one of the other ingredients; as, potassium bichromate; -- called also dichromate.

A salt of bromic acid.

amalgamated) is surrounded by dilute sulphuric acid, and the carbon by nitric acid or a chromic acid mixture, the two plates being separated by a porous cup.

A salt of chromic acid.

A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron.

ining to, or derived from, chromium, when this element has a valence lower than that in chromic compounds. Chromous acid, a bluish gray powder, CrO.OH, of weak acid properties and regard as an acid.

A salt of chromic acid containing two equivalents of the acid radical to one of the base; -- called also bichromate.

A compound of hydrobromic acid with a base; -- distinguished from a bromide, in which only the bromine unites with the base.

te of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids. Called also prussic acid, hydrogen cyanide, etc.

A very large serranoid fish (Promicrops itaiara) of Florida and the Gulf of Mexico. It often reaches the weight of five hundred pounds. Its color is olivaceous or yellowish, with numerous brown spots. Called also guasa, and warsaw.

See Lithochromics.

The act or process of tracing a loxodromic curve; the act of moving as if in a loxodromic curve.

The science of loxodromics. [R.]

alline substance, C10H6O2, analogous to quinone, obtained by oxidizing naphthalene with chromic acid.

A salt of perbromic acid.