Noun.  (organic chemistry) Any univalent radical containing an acyl functional group bonded to an oxygen atom having a free valence on the oxygen atom; RC(=O)O-.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.