Defn: A black submetallic mineral consisting of oxide of chromium and iron; — called also chromic iron.
2. (Chem.)
Defn: A compound or salt of chromous hydroxide regarded as an acid.
[R.]
CHROMIUM
Chro"mi*um, n. Etym: [NL., fr. Gr. (Chem.)
Defn: A comparatively rare element occurring most abundantly in the mineral chromite. Atomic weight 52.5. Symbol Cr. When isolated it is a hard, brittle, grayish white metal, fusible with difficulty. Its chief commercial importance is for its compounds, as potassium chromate, lead chromate, etc., which are brilliantly colored and are used dyeing and calico printing. Called also chrome.
CHROMO
Chro"mo, n.; pl. Chromos. Etym: [Abbrev. from chromolithograph.]
Defn: A chromolithograph.
CHROMOBLAST
Chro"mo*blast, n. Etym: [Gr. -blast.]
Defn: An embryonic cell which develops into a pigment cell.
CHROMOGEN
Chro"mo*gen, Etym: [Gr. -gen.]