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Meaning & Definition of Impulse in English

English

Impulse

/ɪmpəls/

noun

1. An instinctive motive

  • "Profound religious impulses"
    synonym:
  • urge
  • ,
  • impulse

2. A sudden desire

  • "He bought it on an impulse"
    synonym:
  • caprice
  • ,
  • impulse
  • ,
  • whim

3. The electrical discharge that travels along a nerve fiber

  • "They demonstrated the transmission of impulses from the cortex to the hypothalamus"
    synonym:
  • nerve impulse
  • ,
  • nervous impulse
  • ,
  • neural impulse
  • ,
  • impulse

4. (electronics) a sharp transient wave in the normal electrical state (or a series of such transients)

  • "The pulsations seemed to be coming from a star"
    synonym:
  • pulsation
  • ,
  • pulsing
  • ,
  • pulse
  • ,
  • impulse

5. The act of applying force suddenly

  • "The impulse knocked him over"
    synonym:
  • impulse
  • ,
  • impulsion
  • ,
  • impetus

6. An impelling force or strength

  • "The car's momentum carried it off the road"
    synonym:
  • momentum
  • ,
  • impulse

Examples of using

He went out, yielding to a sudden impulse.
It was hard to resist the impulse to wring Tom's neck.
He told his wife not to buy on impulse.