Definition of "carbonyl" in English

noun

1. (organic chemistry) A divalent functional group, (-CO-), characteristic of aldehydes, ketones, carboxylic acids, amides, carboxylic acid anhydrides, carbonyl halides, esters and others.

2. (inorganic chemistry) Any compound of a metal with carbon monoxide, such as nickel carbonyl, Ni(CO)₄.