HIBERNACULUM
Etymology
Noun
hibernaculum (plural hibernacula)
(zoology) The place where a hibernating animal shelters for the winter
(botany) A bud, case, or protective covering that a plant uses to survive the challenging environmental conditions during a dormancy period.
Source: Wiktionary
Hi`ber*nac"u*lum, n. Etym: [See Hibernacle.]
1. (Bot.)
Definition: A winter bud, in which the rudimentary foliage or flower, as of
most trees and shrubs in the temperate zone, is protected by closely
overlapping scales.
2. (Zoöl.)
Definition: A little case in which certain insects pass the winter.
3. Winter home or abiding place. J. Burroughs.
Source: Webster’s Unabridged Dictionary 1913 Edition