/ Dictionary / Index E estivation: Meaning and Definition of Find definitions for: es•ti•va•tion Pronunciation: (es"tu-vā'shun), [key] — n. the act of estivating. the arrangement of the parts of a flower in the bud. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: estivation (Thesaurus) estivate estoc 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