from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The act of spending or passing the summer.
  • n. Zoology A state of dormancy or torpor during the summer.
  • n. Botany The arrangement of flower parts in the bud.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Alternative spelling of aestivation.

from The Century Dictionary and Cyclopedia

  • n. The act of passing the summer.
  • n. Specifically In zoology, the summer sleep of certain animals, as mollusks; the act of falling into a more or less permanent condition of sleep or dormant state in summer.
  • n. In botany, prefloration; the disposition of the parts of a flower in the bud.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period
  • n. (botany) the arrangement of sepals and petals in a flower bud before it opens


Sorry, no etymologies found.


  • This is a state called estivation; its like hibernation, but its triggered by dry and hot conditions instead of cold.

    CreationWiki - Recent changes [en]

  • In my estivation, I conclude that Mother Nature is pissed about getting deep drilled and this heat is just a reminder of who is in charge.

    Kate Clinton: Dahlin'

  • During hibernation in winter and estivation in summer, animals in burrows have greatly reduced metabolic processes.

    Adaptations of desert amphibians and reptiles

  • On the under story, towards the garden, let it be turned to a grotto, or a place of shade, or estivation.

    The Essays

  • In the evenings, while they force down obligatory eight-course gastronomies prepared by celebrity chefs at Relais & Chateaux resorts, we contentedly order the plat du jour at a little bistro not far from our humble two-star hotel -- simple economies that help make our vacation savings last our four-week estivation.


  • But tell me, please; have studies been done that indicate how long it is possible for various snails to remain in a state of estivation?

    Why I am sceptical of Brenda's story

  • I haven't looked into this at all -- what are the confirmed records for length of estivation?

    Why I am sceptical of Brenda's story

  • As undergraduates approach the LSAT, as 1Ls matriculate, as professors end their collective estivation, Jurisdynamics offers this wish for the coming academic year.

    The mathematics of TrueColor (and what it has to do with law and legal education)

  • Yet they were not sleeping, had not suddenly opted for instant estivation as opposed to trying to kill the three people they had chased into the water.

    Drowning World

  • Was pleasantly surprised to see moonfl0wer there after her previous announcement of estivation for today.

    The Last Dancer


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  • *Rubs eyes*

    August 11, 2010

  • The summer sleep of mollusks (among other things).

    August 11, 2010