- a protective case or covering, especially for winter, as of an animal or a plant bud.
- winter quarters, as of a hibernating animal.
Also hi·ber·nac·le [hahy-ber-nak-uh l] /ˈhaɪ bərˌnæk əl/.
Origin of hibernaculum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the winter quarters of a hibernating animal
- the protective case or covering of a plant bud or animal
C17: from Latin: winter residence; see hibernate
Word Origin and History for hibernacle
"winter residence," 1708, from Latin hibernaculum "winter residence, winter quarters," related to hibernare "to winter" (see hibernation) with instrumentive suffix -culum. Related: Hibernacular.
Online Etymology Dictionary, © 2010 Douglas Harper
- A protective case, covering, or structure, such as a plant bud, in which an organism remains dormant for the winter.
- The shelter of a hibernating animal.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.