a rose-red, amorphous, water-insoluble powder, Co 2 O 3 ⋅3H 2 O, used chiefly in the preparation of cobalt salts and in the manufacture of paint and varnish driers.
noun 1. a pigment used in painting consisting mainly of arsenate of cobalt, characterized chiefly by its violet color, permanence, and poisonous properties.
noun 1. . 2. Also called cobalt potassium nitrite. .
[kob] /kɒb/ noun 1. Howell [hou-uh l] /ˈhaʊ əl/ (Show IPA), 1815–68, U.S. politician: Speaker of the House 1849–51. 2. Irvin S(hrewsbury) 1876–1944, U.S. humorist and writer. 3. Ty(rus Raymond) [tahy-ruh s] /ˈtaɪ rəs/ (Show IPA), (“the Georgia Peach”) 1886–1961, U.S. baseball player.
[kob-er] /ˈkɒb ər/ noun, Australian. 1. a close fellow male friend; chum; pal. /ˈkɒbə/ noun 1. (Austral & NZ, informal) a friend; mate: used as a term of address to males