transcription, транскрипция: [ noun ]
Etymology: translation of Medieval Latin primus motor
Date: 1809
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