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hibernaculum

[hahy-ber-nak-yuh-luh m]
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noun, plural hi·ber·nac·u·la [hahy-ber-nak-yuh-luh] /ˌhaɪ bərˈnæk yə lə/.
  1. a protective case or covering, especially for winter, as of an animal or a plant bud.
  2. winter quarters, as of a hibernating animal.
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Also hi·ber·nac·le [hahy-ber-nak-uh l] /ˈhaɪ bərˌnæk əl/.

Origin of hibernaculum

1690–1700; < Latin hībernāculum winter residence, equivalent to hībernā(re) (see hibernate) + -culum -cule2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hibernacle

hibernaculum

hibernacle (ˈhaɪbəˌnækəl)

noun plural -ula (-jʊlə) or -les rare
  1. the winter quarters of a hibernating animal
  2. the protective case or covering of a plant bud or animal
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Word Origin

C17: from Latin: winter residence; see hibernate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for hibernacle

n.

"winter residence," 1708, from Latin hibernaculum "winter residence, winter quarters," related to hibernare "to winter" (see hibernation) with instrumentive suffix -culum. Related: Hibernacular.

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Online Etymology Dictionary, © 2010 Douglas Harper

hibernacle in Science

hibernaculum

[hī′-bər-năkyə-ləm]
  1. A protective case, covering, or structure, such as a plant bud, in which an organism remains dormant for the winter.
  2. The shelter of a hibernating animal.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.