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The definition of impulse

8 Definitions of: impulse

    1. noun, an impelling force or motion; thrust; impetus
    2. noun, a sudden desire, whim, or inclination
    3. noun, an instinctive drive; urge
    4. noun, tendency; current; trend
    5. noun, physics a) the product of the average magnitude of a force acting on a body and the time for which it acts b) the change in the momentum of a body as a result of a force acting upon it for a short period of time
    6. noun, physiol. See nerve impulse
    7. noun, electronics. a less common word for pulse
    8. noun, on impulse spontaneously or impulsively
    9. Show me some examples of this word: impulse
    10. Show me the etymology of the word: impulse
Synonyms: longing, fancy, instinct, force, on impulse impromptu, urge, desire, drive, wish, notion And more...
 

From Collins

©HarperCollins 2008. Collins English Dictionary definition of impulse