- estivation, aestivation - (zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period
--1 is a kind of dormancy, quiescence, quiescency
Derived form: verb aestivate1 - estivation, aestivation - (botany) the arrangement of sepals and petals in a flower bud before it opens
--2 is a kind of arrangement
--2 is a part of flower bud