What is "enone"

n. (context organic chemistry English) Any ketone having a neighbouring double bond

An enone, also called an α,β-unsaturated carbonyl, is a type of organic compound consisting of an alkene conjugated to a ketone. The simplest enone is methyl vinyl ketone (butenone) or CH=CHCOCH. An enal is the corresponding α,β-unsaturated aldehyde, an example being acrolein (CH=CHCHO).