Hibernaculum \Hi`ber*nac"u*lum\, n. [See {Hibernacle}.]
1. (Bot.) 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.
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2. (Zool.) A little case in which certain insects pass the
winter.
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3. Winter home or abiding place. --J. Burroughs.
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