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Noun: hibernation  ,hI-bu(r)'ney-shun
  1. The torpid or resting state in which some animals pass the winter
    "The groundhog's hibernation typically lasts until early spring"
     
  2. Cessation from or slowing of activity during the winter; especially slowing of metabolism in some animals
    "Bears enter a state of hibernation to survive the harsh winter months"
     
  3. The act of retiring into inactivity
    "he emerged from his hibernation to make his first appearance in several years"

Derived forms: hibernations

Type of: dormancy, quiescence, quiescency, retiral [UK, dialect], retirement, torpidity, torpor

Encyclopedia: Hibernation