hibernation

/ˌhaɪbərˈneɪʃən/
noun
  1. A state of inactivity and reduced body temperature that some animals enter during winter to conserve energy.
    • Scientists study hibernation to learn how animals survive extreme cold.
    • Bears prepare for hibernation by eating large amounts of food in the fall.
    • During hibernation, the ground squirrel's heart rate drops to just a few beats per minute.
  2. A period of inactivity or dormancy for a person, organization, or system.
    • The company went into hibernation after the market crashed.
    • After months of hibernation, the band finally released a new album.
    • The computer's hibernation mode saves power when you're not using it.