diurnal motion
Hello, you have come here looking for the meaning of the word diurnal motion. In DICTIOUS you will not only get to know all the dictionary meanings for the word diurnal motion, but we will also tell you about its etymology, its characteristics and you will know how to say diurnal motion in singular and plural. Everything you need to know about the word diurnal motion you have here. The definition of the word diurnal motion will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofdiurnal motion, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Noun
- (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).