a cobalt-60 device used in radiotherapy
a nuclear weapon consisting of a hydrogen bomb encased in cobalt, which releases large quantities of radioactive cobalt-60 into the atmosphere
noun 1. a medium, yellowish-green color. 2. Also called zinc green. a pigment used in painting consisting mainly of oxides of cobalt and zinc, characterized chiefly by its green color, fast drying rate, permanence, and lack of tinting strength.
[koh-bawl-tik] /koʊˈbɔl tɪk/ adjective 1. of or containing , especially in the trivalent state. /kəʊˈbɔːltɪk/ adjective 1. of or containing cobalt, esp in the trivalent state
[koh-bawl-tahyt, koh-bawl-tahyt] /koʊˈbɔl taɪt, ˈkoʊ bɔlˌtaɪt/ noun 1. a mineral, arsenic sulfide, CoAsS, silver-white with a reddish tinge: an end member of a series of solid solutions that includes gersdorffite; used as an ore of . /kəʊˈbɔːltaɪt; ˈkəʊbɔːlˌtaɪt/ noun 1. a rare silvery-white mineral consisting of cobalt arsenic sulphide in cubic crystalline form: a major […]
[koh-bawl-tuh s] /koʊˈbɔl təs/ adjective 1. containing bivalent . /kəʊˈbɔːltəs/ adjective 1. of or containing cobalt in the divalent state
noun 1. 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.