- 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
Examples from the Web for hibernaculum
Young caterpillar with hibernaculum (h); caterpillar and chrysalis.The Butterflies of the British Isles
Soil temperatures were taken in the present study only when the turtle was in a form, hibernaculum, or den.
There is little movement during dormancy except for the deepening or horizontal extension of the hibernaculum.
Hibernaculum: a tent or sheath made out of a leaf or other material in which a larva hides or hibernates.Explanation of Terms Used in Entomology
John. B. Smith
When the hibernaculum is finished the seam is perfectly smooth and the hole inside is lined with silk.Butterflies Worth Knowing
Clarence M. Weed
- 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
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
- 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.