pre·​cess | \ prē-ˈses How to pronounce precess (audio) , ˈprē-ˌses How to pronounce precess (audio) \
precessed; precessing; precesses

Definition of precess

intransitive verb

: to progress with a movement of precession

transitive verb

: to cause to precess

Examples of precess in a Sentence

Recent Examples on the Web

After that time, if all goes well, the second stage will fire for a third time to send the Tesla on a precessing Earth-Mars elliptical orbit around the Sun. Eric Berger, Ars Technica, "SpaceX’s colossal Falcon Heavy has taken flight [Updated]," 6 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'precess.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of precess

1892, in the meaning defined at intransitive sense

History and Etymology for precess

back-formation from precession

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Time Traveler for precess

The first known use of precess was in 1892

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More from Merriam-Webster on precess

Rhyming Dictionary: Words that rhyme with precess

Comments on precess

What made you want to look up precess? Please tell us where you read or heard it (including the quote, if possible).


appealing forcibly to the mind or reason

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