es·ti·vate /-ˌvet/
  (vi.)度夏,過夏天,夏眠
  es·ti·vate /-ˌvet/ 不及物動詞
  Æs·ti·vate v. i.
  1. To spend the summer.
  2. Zool. To pass the summer in a state of torpor.
  [Spelt also estivate.]
  ◄ ►
  Es·ti·val a., Es·ti·vate v. i., Es·ti·va·tion n. Same as æstival, æstivate, etc.
  ◄ ►
  estivate
       v : sleep during summer; "certain animals estivate" [syn: aestivate]
           [ant: hibernate, hibernate]