Pronunciation: (hi'bur-nāt"), [key]
—v.i., -nat•ed, -nat•ing.
1. to spend the winter in close quarters in a dormant condition, as bears and certain other animals.
2. to withdraw or be in seclusion; retire.
3. to winter in a place with a milder climate: Each winter finds us hibernating in Florida.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.