aestivation


Concise Oxford English Dictionary © 2008 Oxford University Press:
aestivation /ˌiːstɪˈveɪʃ(ə)n, ˌɛst-/ (US estivation)
noun
  • 1 Zoology prolonged torpor or dormancy of an insect, fish, or amphibian during a hot or dry period.
  • 2 Botany the arrangement of petals and sepals in a flower bud before it opens. Compare with vernation.
– derivatives
aestivate verb.
– origin C17: from L. aestivat-, aestivare ‘spend the summer’, from aestus ‘heat’ + -ation.
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