hibernation

[hahy-ber-ney-shuhn]

noun

1. a state of winter dormancy in some animals, in which normal annual rhythms slow the heart, breathing, and metabolic rates to a minimum, and the animal sleeps deeply in protective quarters.

hibernation

1. An inactive state resembling deep sleep in which certain animals living in cold climates pass the winter. In hibernation, the body temperature is lowered and breathing and heart rates slow down. Hibernation protects the animal from cold and reduces the need for food during the season when food is scarce.

2. Compare estivation

hibernation

1. Passing the winter in a sleeping or inactive condition. Bears, ground squirrels, woodchucks, and several other kinds of animals hibernate.

Word History and Origins

Origin of hibernation¹

First recorded in 1680–90; hibernat(e) ( def. ) + -ion ( def. )

Example Sentences

Like many insects, ladybirds enter a state of inactivity over winter known as diapause – an insect version of hibernation.

From BBC

Chunk received the most votes in a competition between 12 brown bears where voters pick the one they believe "best exemplifies fatness and success" as they prepare for winter hibernation.

From BBC

One of the greatest joys of living in New York City is coming out of a dreary winter hibernation to experience summer.

From Salon

Then came winter, with the Padres going into hibernation as the Dodgers signed most of the free world.

From Los Angeles Times

Nuguse's pet tortoise Tyro has only been out of hibernation for a few days when we speak, but the laid-back athlete is grateful to have his companion back.

From BBC

Related Words

• coma 
• dream 
• slumber 
• trance