plural of diurnal

Happening or occurring during daylight, or primarily active during that time. / (botany) Said of a flower open, or releasing its perfume during daylight hours, but not at night.

A flower that opens only in the day. / (Catholicism) A book containing canonical offices performed during the day, hence not matins. / (archaic) A diary or journal. / (archaic) A daily news publication.

The condition or habit of being active during the day.

plural of diurnality

daily / By daylight. / Every daytime.

(rare) The quality of being diurnal.

The condition of being diurnal / The condition of being a diurnalist

(astronomy) The apparent westward rotation of the celestial sphere, along with the apparent westward revolution of celestial objects, around the celestial poles due to prograde (eastward) rotation of planet Earth relative to the seemingly fixed stars – completed once each sidereal day (about 23 hours, 56 minutes, 4 seconds).

(astrology) the path followed by a planet, point, or degree from its rising point to its setting point.