"hibernation" in the noun sense
1. hibernation
the torpid or resting state in which some animals pass the winter
2. hibernation
cessation from or slowing of activity during the winter especially slowing of metabolism in some animals
3. hibernation
the act of retiring into inactivity
"he emerged from his hibernation to make his first appearance in several years"
Source: WordNet® (An amazing lexical database of English)
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