hibernation meaning
EN
[-eɪʃən] WHibernation
- Hibernation is a state of inactivity and metabolic depression in endotherms. Hibernation refers to a season of heterothermy that is characterized by low body temperature, slow breathing and heart rate, and low metabolic rate.
- Often associated with low temperatures, the function of hibernation is to conserve energy during a period when sufficient food is unavailable.
- Before entering hibernation, animals need to store enough energy to last through the entire winter. Larger species become hyperphagic and eat a large amount of food and store the energy in fat deposits.
FR hibernation 
- NounPLhibernationsSUF-ation
Definition of hibernation in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Singularia tantum
- Uncountable nouns
- Uncountable nouns
- Countable nouns
- Nouns
- fr hibernation
- en hibernations
- fr hibernations
Source: Wiktionary
Grammatically, this word "hibernation" is a noun, more specifically, a countable noun and a singularia tantum.