/ Dictionary / Index A alkylate: Meaning and Definition of Find definitions for: al•kyl•ate Pronunciation: (al'ku-lāt"), [key] — n., v., -at•ed, -at•ing. —n. a substance produced by adding one or more alkyl groups to a compound. —v.t. to add one or more alkyl groups to (a compound). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alkyl alkylating drug Related Content Daily Word Quiz: novice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language