/ Dictionary / Index R regulate: Meaning and Definition of Find definitions for: reg•u•late Pronunciation: (reg'yu-lāt"), [key] — -lat•ed, -lat•ing. to control or direct by a rule, principle, method, etc.: to regulate household expenses. to adjust to some standard or requirement, as amount, degree, etc.: to regulate the temperature. to adjust so as to ensure accuracy of operation: to regulate a watch. to put in good order: to regulate the digestion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: regulate (Thesaurus) regular year regulation Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language