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…
COCK n.
he lock of a firearm. At cock, At full cock, with the hammer raised and ready to fire; -- said of firearms, also, jocularly, of one prepared for instant action. -- At half cock. See under Half. -- Cock feather (Archery), the feather of an arrow at right angles to the direction of the cock or notch. Nares.…