diurnal motion

noun

, Astronomy.

1. the apparent daily motion, caused by the earth's rotation, of celestial bodies across the sky.

diurnal motion

noun

1. motion that occurs during the day or daily, such as the diurnal rotation of the celestial sphere

Example Sentences

The silence was broken only by the ticking of the clock-work which gave diurnal motion to the instrument.

From Project Gutenberg

If the earth then, had no other than its diurnal motion, we should have 366 days in the year.

From Project Gutenberg

The diurnal motion of the earth was hardly suspected until a hundred years later.

From Project Gutenberg

He found that this could be explained by a motion of the equinox in the direction of the apparent diurnal motion of the stars.

From Project Gutenberg

The moon also had three spheres to produce its motions in longitude and latitude, and its diurnal motion.

From Project Gutenberg