prime mover

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prime mover

Where it comes from

Originally in translation of Latin primum mobile.

noun prime movers

  1. The initial agent that is the cause of all things.

    Similar: first cause, first mover, primum mobile, unmoved mover

  2. A machine, such as a water wheel or steam engine, that receives and modifies energy as supplied by some natural source or fuel and transforms it into mechanical work
  3. Tractor unit. Or, more specifically, the front part of a semi-trailer type truck, i.e., the tractor to which the trailer part attaches.
  4. US A military or heavy construction vehicle.
  5. A person or thing that is seminal and influential. "I need not remind this audience that, though Professor Summerlee, as the head of the Committee of Investigation, has been put up to speak to-night, still it is I who am the real prime mover in this business, and that it is mainly to me that any successful result must be ascribed."
  6. An agonist muscle.

Translations

Every language

noun philosophy: initial agent

Españolmotor principal
한국어부동(不動)의 원동자 budong-ui wondongja
Françaispremier moteur
Deutschunbewegter Beweger
Русскийпервопричи́на pervopričína

noun machine

Portuguêsmáquina motriz
DeutschKraftmaschine, Energiemaschine
Русскийперви́чный дви́гатель pervíčnyj dvígatelʹ

noun tractor

Русскийтяга́ч tjagáč, букси́р buksír, тра́ктор tráktor

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Cite this
MLA

"prime mover." Wiktionary, via Micwyn, micwyn.com/word/prime%20mover. Accessed 7 Nov. 2026.

APA

prime mover. (n.d.). In Wiktionary, via Micwyn. Retrieved November 7, 2026, from https://micwyn.com/word/prime%20mover

Chicago

"prime mover." Wiktionary, via Micwyn. Accessed November 7, 2026. https://micwyn.com/word/prime%20mover.

BibTeX
@misc{prime_mover_2026,
  title = {prime mover},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/prime%20mover},
  urldate = {2026-11-07}
}