different between precedence vs precession

English

Etymology

From Middle French précédence (“the state of preceding, anteriority”).

Morphologically precede +? -ence.

Pronunciation

• IPA^(key): /?p??s?d(?)ns/, /p???si?d(?)ns/, /?p?i?s?d(?)ns/

Noun

precedence (countable and uncountable, plural precedences)

1. The state of preceding in importance or priority.
2. Precedent.

Synonyms

• (state of preceding): See Thesaurus:anteriority

Derived terms

• order of precedence

Translations

Usage notes

• The more important entity is said to take precedence over (or, in older texts, take precedence of) the less important.

English

Alternative forms

• præcession (obsolete)

Etymology

From Middle English precessioun, precession, from Medieval Latin pr?cessi?n-, pr?cessio, from Latin praec?d?.

Noun

precession (countable and uncountable, plural precessions)

1. (uncountable) Precedence.

   But as it will not do to talk entirely at random, as Montaigne does, and Ralph Waldo Emerson tries to do, we must take up some little thread or threads. and string our thoughts thereupon, keeping up also a relation among them of precession and succession.

2. (physics, countable) The wobbling motion of the axis of a spinning body when there is an external force acting on the axis.
3. (astronomy, uncountable) The slow gyration of the earth's axis around the pole of the ecliptic, caused mainly by the gravitational torque of the sun and moon.
4. Any of several slow changes in an astronomical body's rotational or orbital parameters.

Derived terms

Related terms

• precess

Translations

Anagrams

• encopresis, necropsies, preconises