impetus
/ˈɪm.pə.təs/
Dictionary
noun
- Something that impels; a stimulating factor.
"The outbreak of World War II in 1939 gave a new impetus to receiver development."
- A force, either internal or external, that impels; an impulse.
- The force or energy associated with a moving body; a stimulus.
- An activity in response to a stimulus.
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