The slow conical motion of the top's slanting axis represents the course of precession.
It is as much outside 97 our control as the precession of the equinoxes.
This slow movement forward of the goal-post is called precession—the precession of the equinoxes.
If the earth were a perfect sphere, precession would be inexplicable.
If this rule is right, we see at once why precession takes place.
Making proper allowance for the precession of the equinoxes.
His figures of speech, his tropes, his witticisms, take rank with the law of gravity and the precession of the equinoxes.
He knows about as much about mining as a hog does about the precession of the equinox.
But there was already recognised as in existence a peculiar movement which explained the precession of the equinoxes.
This precession continues until the roller and the shelf cease to touch.
1590s, from Late Latin praecissionem (nominative praecissio) "a coming before," from past participle stem of Latin praecedere "to go before" (see precede). Originally used in reference to calculations of the equinoxes, which come slightly earlier each year.