Definition from Wiktionary, the free dictionary
aestivation (plural aestivations)
- (biology) A state of inactivity and metabolic depression during summer: the summer version of hibernation.
- (botany) The arrangement (vernation) of the parts of a flower inside a bud; prefloration.
- (obsolete) The spending or passing of a summer.
state of inactivity and metabolic depression during summer
vernation of the parts of flower inside a bud; prefloration
(obsolete) spending or passing the summer