precessional

Meanings

1. 1
   adj

   relating to precession, the slow change in the orientation of a rotating body's axis or orbit

   Earth's precessional cycle gradually changes the direction in which its axis points.

Formed from precession + -al. Precession comes through Late Latin praecessio from Latin praecedere ('to go before'), reflecting the gradual advance of an equinoctial point.

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