Definify.com
Webster 1913 Edition
Diurnation
Diˊur-na′tion
,Noun.
1.
Continuance during the day.
[Obs.]
2.
(Zool.)
The condition of sleeping or becoming dormant by day, as is the case of the bats.
Definition 2024
diurnation
diurnation
English
Noun
diurnation (uncountable)
- (zoology) The condition of sleeping or becoming dormant by day.
- the diurnation of bats
- (obsolete) continuance during the day