Hibernacle :: Hibernacle (n.) That which serves for protection or shelter in winter; winter quarters; as, the hibernacle of an animal or a plant..
Hibernaculum :: Hibernaculum (n.) 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..
Hibernaculum :: Hibernaculum (n.) A little case in which certain insects pass the winter.