COBALTIC a.
Pertaining to, derived from, or containing, cobalt; -- said especially of those compounds in which cobalt has higher valence; as, cobaltic oxide. Luteo-cobaltic compounds (Chem.), an extensive series of complex yellow compounds of ammonia and cobaltic salts. -- Roseo-cobaltic compounds (Chem.), an extensive series of…
COBALTOUS a.
Pertaining to, derived from, or containing, cobalt; -- said esp. of cobalt compounds in which the metal has its lower valence. Cobaltous chloride, a crystalline compound, CoCl2, of a pale rose color when hydrous, blue when dehydrated. Its solution is used for a sympathetic ink, the writing being nearly colorless when d…
COKE n.
Mineral coal charred, or depriver of its bitumen, sulphur, or other volatile matter by roasting in a kiln or oven, or by distillation, as in gas works. It is lagerly used where [Written also coak.] Gas coke, the coke formed in gas retorts, as distinguished from that made in ovens.
COMER n.
One who comes, or who has come; one who has arrived, and is present. All comers, all who come, or offer, to take part in a matter, especially in a contest or controversy. "To prove it against all comers." Bp. Stillingfleet.
COMPETE v.
To contend emulously; to seek or strive for the same thing, position, or reward for which another is striving; to contend in rivalry, as for a prize or in business; as, tradesmen compete with one another. The rival statesmen, with eyes fixed on America, were all the while competing for European alliances. Bancroft.…