aes·ti·va·tion

(ĕs′tə-vā′shən)

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

aestivation

(ˌiːstɪˈveɪʃən; ˌɛs-) or

estivation

1. (Zoology) the act or condition of aestivating

2. (Botany) the arrangement of the parts of a flower bud, esp the sepals and petals

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

aes·ti·va·tion

(ĕs′tə-vā′shən)

Another spelling of estivation.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

estivation, aestivation

Obsolete, summering; the taking of a summer holiday.

See also: Zoology

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	aestivation - (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period estivation zoological science, zoology - the branch of biology that studies animals dormancy, quiescence, quiescency - a state of quiet (but possibly temporary) inaction; "the volcano erupted after centuries of dormancy"
	2.	aestivation - (botany) the arrangement of sepals and petals in a flower bud before it opens estivation phytology, botany - the branch of biology that studies plants arrangement - an orderly grouping (of things or persons) considered as a unit; the result of arranging; "a flower arrangement" flower bud - a bud from which only a flower or flowers develop

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References in classic literature

It is well known that within the tropics, the hybernation, or more properly aestivation, of animals is determined not by the temperature, but by the times of drought.

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Most of the species' activity occurs in the water, but terrestrial environments are used for hibernation, aestivation, and nesting (Reese and Welsh 1997; Rathbun and others 2002).

HABITAT USE, MOVEMENT PATTERNS, AND NEST SITE SELECTION BY WESTERN POND TURTLES (ACTINEMYS MARMORATA) IN A MANAGED CENTRAL CALIFORNIA RANGELAND POND

However, representatives of the subclass Pulmonata (Cuvier, 1817), adapted to the sharp fluctuations of temperature, falling into the summer (aestivation period) or winter (hibernation period) lethargy.

Mollusks (Gastropoda) as Intermediate Hosts of Cattles' Trematodes (Trematoda) in Conditions of Dnipro Basin's Small Ponds (Northern Ukraine)

Aestivation refers to a period of decreased physiological activity in response to dry environmental conditions (Hayes et al., 2015).

Physiology of the Apple Snail Pomacea maculata: Aestivation and Overland Dispersal

Pest incidence, mortality, aestivation, feed intake and growth in West African giant snail (Achatina achatina) reared under different housing systems.

Terrestrial Snail Fauna and Associated Helminth Parasites in a Tropical Semi-Urban Zone, Enugu State, Nigeria

Temperatures above 28 [degrees]C are said to initiate aestivation, but the snail can survive temperatures near 45 [degrees]C (Raut & Ghose 1984).

Effect of temperature and egg laying depths on giant African land snail (Gastropoda: Achatinidae) viability

Conversely, high water temperatures can also induce aestivation in some sea cucumber species, such as has been observed in Apostichopus japonicus and Australostichopus mollis (Yang et al., 2005).

Estimation of growth parameters for the exploited sea cucumber Holothuria arguinensis from South Portugal

This snail species seeks moist soil as an aestivation site to aid in maintaining body moisture because they do not feed while aestivating [14].

FIELD ASSESSMENT OF ABUNDANCE, HOST PLANT UTILIZATION AND BEHAVIOR OF THE INVASIVE PHYTOPOLYPHAGOUS GIANT AFRICAN SNAIL, ACHATINA FROM SELECTED SITES IN MINDANAO, PHILIPPINES

Skeletal muscle atrophy occurs slowly and selectively during prolonged aestivation in Cyclorana alboguttata (Gunther 1867).

Local inhibition of nitrergic activity in tenotomized rats accelerates muscle regeneration by increasing fiber area and decreasing central core lesions

In high- and low-humidity treatments, snails ceased movement after 48 h and appeared to enter a state of aestivation. Statistics were only calculated for the 28-day trial, due to the change in methods for the extended component of the study.

Abiotic tolerances in different life stages of apple snails Pomacea canaliculata and Pomacea maculata and the implications for distribution