• (n.) An alcoholate of methyl alcohol in which the hydroxyl hydrogen is replaced by a metal, after the analogy of a hydrate; as, sodium methylate, CH3ONa. • (v. t.) To impregnate or mix with methyl or methyl alcohol.
1. To add methyl alcohol to ethanol to render it undrinkable. 2. To replace an atom, usually a hydrogen, with a methyl group. ... (09 Oct 1997) ... 
(meth´әl-āt) a compound of methyl alcohol and a base. to add a methyl group to a substance.
Meth'yl·ate noun [ Methyl + alcohol ate .] (Chemistry) An alcoholate of methyl alcohol in which the hydroxyl hydrogen is replaced by a metal, after the analogy of a hydrate; as, sodium methylate , CH 3 ONa. 
Type: Term Pronunciation: meth′i-lāt Definitions: 1. To mix with methanol. 2. To introduce a methyl group. 3. A compound in which a metal ion methyl replaces the alcoholic hydrogen of alcohol.
Methoxide
methylate 1. Any derivative of methyl alcohol, as sodium methylate. 2. Any compound containing the methyl group.