Source : Webster's Revised Unabridged Dictionary (1913)

Ethylate \Eth"yl*ate\ (-[asl]t), n. [From {Ethyl}.] (Chem.)
   A compound derived from ethyl alcohol by the replacement of
   the hydroxyl hydrogen, after the manner of a hydrate; an
   ethyl alcoholate; as, potassium ethylate, {C2H5.O.K}.