- a colorless or yellow, volatile, water-insoluble, poisonous, flammable liquid, Ni(CO)4, obtained by the reaction of nickel and carbon monoxide, and used for nickel-plating.
Origin of nickel carbonyl
First recorded in 1930–35
Also called nickel tetracarbonyl.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018