different between carbonyl vs triazolone

English

carbon +? -yl

carbonyl (plural carbonyls)

(organic chemistry) In organic chemistry, a divalent functional group, (-CO-), characteristic of aldehydes, ketones, carboxylic acids, amides, carboxylic acid anhydrides, carbonyl halides, esters and others.
(inorganic chemistry) Any compound of a metal with carbon monoxide, such as nickel carbonyl, Ni(CO)₄.

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “tri- + azole + -one?”)

triazolone (plural triazolones)

(organic chemistry) A heterocyclic ketone containing three nitrogen atoms, one double bond and a carbonyl group

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