Synonyms:
rotation, rotary_motion
Meaning: the act of rotating as if on an axis; "the rotation of the dancer kept time with the music"
Usage examples
'A dull rotation, never at a stay, Yesterday's face twin image of to-day.' COWPER.
Hence the rotation takes place against a pull, and is therefore more or less checked and retarded.
The energy of the tides is, in fact, continually being dissipated by friction, and all the energy so dissipated is taken from the rotation of the earth.
Immediately the series of changes I have described begins, the speed of rotation gets slackened, the moon's mass gets pushed further and further away, and its time of revolution grows rapidly longer.
Also that the moon's rotation relative to the earth has been destroyed by past tidal action in it (the only residue of ancient lunar rotation now being a scarcely perceptible libration), so that it turns always the same face towards us.
As all the world knows, the sun, a blinding globe pouring forth an inconceivable quantity of light and heat, whose daily passage through the sky is caused by the earth's rotation on its axis, constitutes the most important phenomenon of terrestial existence.
There was a certain rotation of crops; the tenant was obliged to keep his stock up to standard; and, moreover, he had a certain interest in the land because his contract rent (as explained above) was less than the economic rent. The landlord, therefore, could count pretty surely on the undiminished power of his land and stock from one year to another.