verb[no object] Zoology
(Of an insect, fish, or amphibian) spend a hot or dry period in a prolonged state of torpor or dormancy.
- The toads must aestivate during the summer, burrowing down into the soil to survive the heat.
- When the water evaporates, the crocodiles estivate, or pass the summer in a kind of torpor.
- Sirens are known to aestivate when in habitats subject to drought.
Early 17th century (in the sense 'pass the summer'): from Latin aestivat-, from aestivare 'spend the summer', from aestus 'heat'.
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