prime mover

noun

Definition of prime mover

  1. 1a :  an initial source of motive power (as a windmill, waterwheel, turbine, or internal combustion engine) designed to receive and modify force and motion as supplied by some natural source and apply them to drive machineryb :  a powerful tractor or truck usually with all-wheel drive

  2. 2 :  the self-moved being that is the source of all motion

  3. 3 :  the original or most effective force in an undertaking or work <education is … a prime mover of cultural and societal change — R. C. Buck>

Examples of prime mover in a sentence

  1. She was the prime mover behind the town's annual summer festival.

Origin and Etymology of prime mover

translation of Medieval Latin primus motor


First Known Use: 1795


PRIME MOVER Defined for English Language Learners

prime mover

noun

Definition of prime mover for English Language Learners

  • : a person or thing that starts something or that has a very powerful influence on something


Medical Dictionary

prime mover

play
noun \ˈprīm-ˈmü-vər\

Medical Definition of prime mover

  1. :  agonist 1

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