vi \ˈhī-bər-ˌnāt\

Definition of HIBERNATE

: to pass the winter in a torpid or resting state; especially : to pass the winter in a torpid condition in which the body temperature drops to a little above freezing and metabolic activity is reduced nearly to zero—compare estivate
hi·ber·na·tion \ˌhī-bər-ˈnā-shən\ noun
hi·ber·na·tor \ˈhī-bər-ˌnāt-ər\ noun

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