1. (

• hibernate ,
• hole_up

) sleep during winter; "Bears must eat a lot of food before they hibernate in their caves" ;

2. (

• hibernate

) be in an inactive or dormant state ;

1. (

• dormant ,
• hibernating ,
• torpid

) in a condition of biological rest or suspended animation; "dormant buds"; "a hibernating bear"; "torpid frogs" ;