noun
or es·ti·va·tion ˌ ̷ ̷ ̷ ̷ˈvāshən
( -s )
Etymology: Latin aestivat us + English -ion
1. : the state or condition of torpidity or dormancy induced by heat and dryness of summer (as in certain snails) — opposed to hibernation
2. : the disposition or method of arrangement of floral parts in a bud — compare vernation