from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Biology A protective case, covering, or structure, such as a plant bud, in which an organism remains dormant for the winter.
- n. Biology The shelter of a hibernating animal.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The place where a hibernating animal shelters for the winter
- n. A bud, case, or protective covering that a plant uses to survive the challenging environmental conditions during a dormancy period.
from the GNU version of the Collaborative International Dictionary of English
- 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.
- n. A little case in which certain insects pass the winter.
- n. Winter home or abiding place.
from The Century Dictionary and Cyclopedia
- n. Same as hibernacle, 1.
- n. In dot., any part of a plant which protects an embryonic organ during the winter, as a bud or bulb. Also hibernacle.
- n. In zoology: One of the winter buds of a polyzoan; an arrested and encysted polyzoön-bud capable of surviving the winter and germinating in the following spring.
- n. The false opercule or pseudoperculum of a snail.
Latin hībernāculum, winter residence, from hībernāre, to winter, from hībernus, relating to winter; see ghei- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin for winter quarters. (Wiktionary)