MAINSPRING


Meaning of MAINSPRING in English

transcription, транскрипция: [ ˈmān-ˌspriŋ ]

noun

Date: 1591

1. : the chief spring in a mechanism especially of a watch or clock

2. : the chief or most powerful motive, agent, or cause

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.