hibernate

verb

hi·​ber·​nate ˈhī-bər-ˌnāt 

hibernated; hibernating

intransitive verb

1

: to pass the winter in a torpid or resting state

bears hibernating in their dens

2

: to be or become inactive or dormant

let the computer hibernate

hibernation

ˌhī-bər-ˈnā-shən 

noun

hibernator

ˈhī-bər-ˌnā-tər 

noun

Examples of hibernate in a Sentence

bears hibernating in their dens

Recent Examples on the Web

Cold temps may be creeping in, but your travel dreams don’t have to hibernate. —Kimberly Richardson, CNN Money, 21 Oct. 2025

Once the weather gets cold enough, the bears will hibernate, and many scavengers become less active. —Brandee Gruener, Southern Living, 15 Oct. 2025

Ants in the Philippines don’t hibernate, which meant his new home was fertile ground for making videos year-round. —Katherine Laidlaw, HubSpot, 19 Sep. 2025

With the sockeye population swimming back to the Sea, chubbed up grizzlies find a cozy spot for hibernating as Arctic temperatures drop. —Andrew Watman, Forbes.com, 11 Sep. 2025

Word History

Etymology

Latin hibernatus, past participle of hibernare to pass the winter, from hibernus of winter; akin to Latin hiems winter, Greek cheimōn

First Known Use

1816, in the meaning defined at sense 1

Rhymes for hibernate

• abdicate
• abrogate
• acetate
• activate
• actuate
• adsorbate
• aggravate
• agitate
• alginate
• alienate
• allocate
• amputate

Kids Definition

hibernate

verb

hi·​ber·​nate ˈhī-bər-ˌnāt 

hibernated; hibernating

: to pass the winter in a sleeping or resting state

hibernation

ˌhī-bər-ˈnā-shən 

noun

hibernator

ˈhī-bər-ˌnāt-ər 

noun

Medical Definition

hibernate

intransitive verb

hi·​ber·​nate ˈhī-bər-ˌnāt 

hibernated; hibernating

: 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

hibernation

ˌhī-bər-ˈnā-shən 

noun

hibernator

ˈhī-bər-ˌnāt-ər 

noun