DuckCorp Dico

Found 2 definitions

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   AEstival \[AE]s"ti*val\, a. [L. aestivalis, aestivus, fr. aestas
      summer.]
      Of or belonging to the summer; as, [ae]stival diseases.
      [Spelt also estival.]
      [1913 Webster]
   
                   
                 

2.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Estival \Es"ti*val\, a., Estivate \Es"ti*vate\, v. i.,
   Estivation \Es`ti*va"tion\, n.
      Same as [ae]stival, [ae]stivate, etc.
      [1913 Webster]