Diurnation

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Diurnation \Di`ur*na"tion\, n.
     1. Continuance during the day. [Obs.]
        [1913 Webster]
  
     2. (Zool.) The condition of sleeping or becoming dormant by
        day, as is the case of the bats.


        [1913 Webster]