1. The act of hibernating.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• hybernation,
• hibranation,
• hernation,
• hibination,
• hiberation,
• hibrination,
• abernation,
• hibernatin,
• hivernation,
• hibrenation,
• hibbernation,
• hibarnation,
• hyperbation,
• cinereation,
• Diernation,
• fibirnation,
• himectation,
• hybernaton,
• Hybernition,
• Hybernations

• hibernal,
• hibernate,
• hibernia,
• hibernating.

The adjective form of the word "hibernation" is "hibernating".

The plural of the "hibernation" can be the "hibernations".

The singular of the "hibernation" can be the "hibernation".