Estivation (Noun)

(botany) the arrangement of sepals and petals in a flower bud before it opens.

Nouns denoting groupings of people or objects.

(zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period.

Nouns denoting natural processes.

Some reptiles enter a state of estivation during the hottest summer months to conserve energy and water.
The African lungfish practices estivation by sealing itself in a layer of dried mucus to survive the dry season.
Mud turtles experience a period of estivation during the summer when water temperatures become too warm for them to be active.
Certain species of frogs and toads undergo estivation to cope with the hot and dry conditions of their summer habitats.
In response to drought, certain types of land snails will seal themselves within their shells and enter a state of estivation to wait for more favorable conditions.