diurnal motion
noun Astronomy.
the apparent daily motion, caused by the earth's rotation, of celestial bodies across the sky.
Words nearby diurnal motion
diuretic,
diuril,
diurnal,
diurnal arc,
diurnal circle,
diurnal motion,
diurnal parallax,
diuron,
div,
div.,
div. in par. aeq.
British Dictionary definitions for diurnal motion
diurnal motion
noun
motion that occurs during the day or daily, such as the diurnal rotation of the celestial sphere