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n. pl. hi·ber·nac·u·la (-lə) Biology
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.

[Latin hībernāculum, winter residence, from hībernāre, to winter, from hībernus, relating to winter; see ghei- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌhaɪbəˈnækjʊləm) or


n, pl -ula (-jʊlə) or -les
1. (Zoology) the winter quarters of a hibernating animal
2. (Biology) the protective case or covering of a plant bud or animal
[C17: from Latin: winter residence; see hibernate]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌhaɪ bərˈnæk yə ləm)

also hi•ber•nac•le

(ˈhaɪ bərˌnæk əl)

n., pl. -nac•u•la (-ˈnæk yə lə) also -nac•les.
1. a protective case or covering for winter, as of an animal or a plant bud.
2. winter quarters, as of a hibernating animal.
[1690–1700; < Latin hībernāculum winter residence =hībernā(re) (see hibernate) + -culum -cule2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Fall migration back to hibernacula occurs from late August to mid-November (Tuttle, 1976; Gerdes, 2016).
2011: Population trends of Dutch bat populations from 25 years of national hibernacula counts.
Hibernation and hibernacula attributes associated with the timber rattlesnake (Crotalus horridus) at Centere Hill Lake in Dekalb County, Tennessee.
Garter snakes are known for their hibernacula -- rather, they're known for freaking people out when they emerge en masse in spring (not to worry, they're harmless -- and beneficial).
As of fall 2016, the fungus has been documented in more than 40 hibernacula in the state, including 65% of the 31 sites that contain more than 500 bats.
Radio-tracked bats migrated short distances (<100 km) to areas where human structures were the most likely hibernacula. We conclude that Little Brown Bats use human structures to offset the constraints of cold temperatures and short foraging seasons in interior Alaska.
hibernacula) that, if identified, could be used to most effectively develop management plans for native or restored prairie ecosystems.
S., A culture-based survey of fungi in soil from bat hibernacula in the eastern United States and its implications for detection of Geomyces destructans, the causal agent of bat white-nose syndrome.Mycologia, 2012, 12-207.
Desperate for energy, the bats leave hibernacula to forage outside, where, facing harsh conditions and meager food sources, many die of starvation or exhaustion.
Chilly rains in late winter or early spring bring several salamander species forth from their underground winter hibernacula in the forest duff to begin their annual migration to small wetland pools where they breed.