Any metal salt of the enol form of a tautomeric aldehyde or ketone(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "enolate" in a sentence
"It exploits the promiscuous aldolase activity of the enzyme macrophomate synthase (MPS) to add pyruvate enolate diastereoselectively to a wide range of structurally complex aldehydes."
"(The mixture gradually became homogeneous as the precipitated Na-enolate salt of the di-Me-acetonedicarboxylate re-dissolved with heating)."
"This structure has a resonance form, an enolate ion, in which a double bond is formed between this negative carbon and the carbonyl carbon, the C-O bond becomes a single bond, and the negative charge is placed on the oxygen atom."