[ es-tuh-vey-shuh n ]
/ ˌɛs təˈveɪ ʃən /


Zoology. the act of estivating.
Botany. the arrangement of the parts of a flower in the bud.

Origin of estivation

First recorded in 1615–25; estivate + -ion Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for estivation

  • First, it may be remembered that this period corresponds nearly to the active life of the animal before and after estivation.

  • It was clear that nature was in preparation for her estivation.

    Of All Things|Robert C. Benchley
  • The dry season here is not excessive, nor is there any estivation, as in some tropical countries.

    The Western World|W.H.G. Kingston

British Dictionary definitions for estivation

/ (ˌiːstɪˈveɪʃən, ˌɛs-) /


the usual US spelling of aestivation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for estivation

[ ĕs′tə-vāshən ]

An inactive state resembling deep sleep, in which some animals living in hot climates, such as certain snails, pass the summer. Estivation protects these animals against heat and dryness. Compare hibernation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.