plural of metal carbonyl

(chemistry) Any complex of a transition metal combined with carbon monoxide; they are typically volatile solids or liquids, soluble on common organic solvents but insoluble in water; they are highly toxic.

(inorganic chemistry) A toxic gas, COCl₂, used in the manufacture of plastics, pesticides etc, and once used as a chemical weapon.

(inorganic chemistry) The mixed oxide and sulfide of carbon COS.

(organic chemistry) The nitrile CO(C≡N)₂ that reacts explosively with water to form hydrogen cyanide and carbon dioxide

Alternative spelling of carbonyl sulfide