- (symbol Co)
a chemical element. Cobalt is a hard silver-white metal, often mixed with other metals and used to give a deep blue-green colour to glass. 钴 - (also cobalt blue)
a deep blue-green colour 深蓝色；钴蓝 More Like This Colour compoundsColour compounds
Word Originlate 17th cent.: from German Kobalt ‘imp, demon’ (from the belief that cobalt was harmful to the ores with which it occurred).