noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   any of a class of unsaturated ketones, having a general formula R₁R₂C=C=O, that react as if they were inner acid anhydrides
2. 2
   the parent compound of this class, CH₂=C=O, an unstable, reactive colourless gas

Etymology

From keto- + -ene.

Related phrases

acid anhydridegeneral formulaparent compound

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.