cobalt, n. Chem. a silvery-white magnetic metallic element occurring naturally as a mineral in combination with sulphur and arsenic, and used in many alloys.
1 a pigment containing a cobalt salt.
2 the deep-blue colour of this.
cobaltic adj. cobaltous adj.
G Kobalt etc., prob. = KOBOLD in mines
blueness, blue, garter-blue, watchet, ultramarine, smalt, cobalt
, cyanogen, Prussian blue, syenite blue, bice, indigo, zaffer, lapis lazuli, sapphire, turquoise, indicolite, blueness, bluishness, bloom, blue, azure, cerulean, sky-blue, sky-colored, sky-dyed, cerulescent, powder blue, bluish, atmospheric, retiring, cold.