1. In a condition of biological rest or suspended animation
   "a hibernating bear"
   - dormant, torpid

1. Sleep during winter
   "Bears must eat a lot of food before they hibernate in their caves"
   - hole up 
2. Be in an inactive or dormant state

See also: asleep, hibernation

Type of: catch some Z's, kip [Brit], log Z's, rest, sleep, slumber

Antonym: estivate

Encyclopedia: Hibernate

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