DIURNALNESS
Di*ur"nal*ness, n.
Defn: The quality of being diurnal.
DIURNATION
Di`ur*na"tion, n.
1. Continuance during the day. [Obs.]
2. (Zoöl.)
Defn: The condition of sleeping or becoming dormant by day, as is the case of the bats.
DIUTURNAL Di`u*tur"nal, a. Etym: [L. diuturnus, fr. diu a long time, by day; akin to dies day.]
Defn: Of long continuance; lasting. [R.] Milton.
DIUTURNITY
Di`u*tur"ni*ty, n. Etym: [L. diuturnitas.]
Defn: Long duration; lastingness. [R.] Sir T. Browne.