any climbing shrub of the tropical American genus Cobaea, esp C. scandens, grown for its large trumpet-shaped purple or white flowers: family Polemoniaceae
[koh-bawlt] /ˈkoʊ bɔlt/ noun 1. a silver-white metallic element with a faint pinkish tinge, occurring in compounds whose silicates afford important blue coloring substances for ceramics. Symbol: Co; atomic weight: 58.933; atomic number: 27; specific gravity: 8.9 at 20°C. /ˈkəʊbɔːlt/ noun 1. a brittle hard silvery-white element that is a ferromagnetic metal: occurs principally in […]
noun, Chemistry. 1. a radioactive isotope of cobalt having a mass number of 60 and a half-life of 5.2 years, used chiefly in radiotherapy. cobalt 60 [(koh-bawlt)] A radioactive isotope produced when neutrons bombard atoms of the element cobalt. Note: Cobalt 60 is a common substance used in radiation therapy for cancer.
[koh-bawlt-am-een, -uh-meen] /ˌkoʊ bɔltˈæm in, -əˈmin/ noun 1. any of the various complex derivatives of cobalt containing one or more molecules of ammonia bonded to the cobalt.
noun, Mineralogy. 1. (def 1) noun 1. another name for erythrite (sense 1)