aes·ti·vate /-ˌvet/ 不及物動詞
  夏眠,夏蟄
  Æs·ti·vate v. i.
  1. To spend the summer.
  2. Zool. To pass the summer in a state of torpor.
  [Spelt also estivate.]
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  aestivate
       v : sleep during summer; "certain animals estivate" [syn: estivate]
           [ant: hibernate, hibernate]