estivation Syllabification: (es·ti·va·tion)Pronunciation: /ˌestəˈvāSHən/ (also aestivation)Definition of estivation noun 1 Zoology prolonged torpor or dormancy of an animal during a hot or dry period. 2 Botany the arrangement of petals and sepals in a flower bud before it opens. Compare with vernation.estivation in other Oxford dictionaries Definition of estivation in the British & World English dictionary
