/
ˈkəʊbɔːlt,
-ɒlt/
n.
the chemical element of atomic number 27, a hard silvery-white magnetic metal.
(Symbol:
Co)
Derivative
- cobaltic
/kə(ʊ)ˈbɔːltɪk, -ˈbɒlt-/
adj. - cobaltous
/kə(ʊ)ˈbɔːltəs, -ˈbɒlt-/
adj.
Etymology
C17: from Ger. Kobalt ‘imp, demon’ (from the belief that cobalt was harmful to the ores with which it occurred).
查看更多