/ Dictionary / Index E estivate: Meaning and Definition of Find definitions for: es•ti•vate Pronunciation: (es'tu-vāt"), [key] — -vat•ed, -vat•ing. to spend the summer, as at a specific place or in a certain activity. to pass the summer in a torpid condition. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: estivate (Thesaurus) estival estivation Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language