Meaning & use
Precessional
Last updated
Relating to precession, the gradual change in orientation of a rotating body's axis, such as a spinning top or the Earth.
See it in a sentence
The satellite's orbit showed a slow precessional drift over several years.
Astronomers use precessional calculations to track the shifting position of the North Star over millennia.
A note on using this word
Earth's own axial precession, sometimes called the 'precession of the equinoxes,' takes about 26,000 years to complete one cycle.
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