estivation

[es-tuh-vey-shuhn]
noun
1.
Zoology. the act of estivating.
2.
Botany. the arrangement of the parts of a flower in the bud.

Origin:
1615–25; estivate + -ion

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World English Dictionary
aestivation or (US) estivation (ˌiːstɪˈveɪʃən, ˌɛs-, ˌiːstɪˈveɪʃən, ˌɛs-)
 
n
1.  the act or condition of aestivating
2.  the arrangement of the parts of a flower bud, esp the sepals and petals
 
estivation or (US) estivation
 
n

estivation (ˌiːstɪˈveɪʃən, ˌɛs-)
 
n
the usual US spelling of aestivation

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
estivation   (ěs'tə-vā'shən)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Estivation is a prolonged state of inactivity of an animal during hot or dry weather.
Estivation: a state of inactivity during long periods of drought or high temperatures.
In the deserts, the animals have to be able to adapt to that extreme heat and they do something called estivation.
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