First Known Use: 1809
Dictionary
prime mover
noun
: a person or thing that starts something or that has a very powerful influence on something
Full Definition of PRIME MOVER
1
a : 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 machinery b : a powerful tractor or truck usually with all-wheel drive
2
: the self-moved being that is the source of all motion
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>
See prime mover defined for English-language learners
ADVERTISEMENT
Origin of PRIME MOVER
translation of Medieval Latin primus motor
Rhymes with PRIME MOVER
Medical Dictionary
prime mover
noun \ˈprīm-ˈmü-vər\
Browse
Next Word in the Dictionary: prime numberPrevious Word in the Dictionary: prime ministerAll Words Near: prime mover
ADVERTISEMENT
Seen & Heard
What made you want to look up prime mover? Please tell us where you read or heard it (including the quote, if possible).