Hibernaculum
Hibernaculum , noun
[See Hibernacle.]
1.
(Botany) 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.
(Zoology) A little case in which certain insects pass the winter.
3.
Winter home or abiding place. — J. Burroughs