cobalaminWiktionary 原文/koʊˈbæləmɪn/构词拆解cobalt词干+vitamin词干词源说明Blend of cobalt + vitamin, 1950s.释义名词noun1(organic chemistry) Any of several forms of vitamin B12 depending on the upper axial ligand of the cobalt ion.同族词派生词 6adenosylcobalamin·cyanocobalamin·deoxyadenosylcobalamin·