the radioactive isotope of chromium having a mass number 51 and a half-life of 27.8 days: used as a tracer.
noun 1. . noun 1. a grayish-green, water-soluble powder, Cr(C 2 H 3 O 2) 3 ⋅H 2 O, used chiefly as a mordant in dyeing and printing textiles.
noun 1. . noun 1. a violet, crystalline compound, CrCl 3 , occurring in both water-soluble and water-insoluble forms, or a green or violet, water-soluble deliquescent compound, CrCl 3 ⋅6H 2 O: used chiefly as a mordant, in chrome-steel plating, and in the synthesis of chromium salts.
noun 1. a strongly magnetic, black, semiconducting substance, CrO 2 , used as the active material in a type of recording tape. noun 1. a chemical compound used as a magnetic coating on cassette tapes; chromium(IV) oxide. Formula: CrO2 Also called (not in technical usage) chrome dioxide
noun 1. . noun 1. a bright-green crystalline powder, Cr 2 O 3 , insoluble in water: used in metallurgy and as the pigment chrome green.