impulse
US /ˈɪmˌpʌls/
・UK /'ɪmpʌls/
B1
noun
- Sudden desire to do something that is not planned
- A sudden strong desire to do something
- A motivating force; an impetus.
- A force acting briefly on a body and producing a finite change of momentum.
- A brief surge of electrical current.
- A sudden strong desire to do something without thinking about whether it is a sensible thing to do.
- A wave of excitation transmitted through nerve fibers and neurons.
other
- A sudden desire to do something, often without thinking about the consequences
- A brief electrical signal transmitted along a nerve fiber or muscle fiber
other
- The integral of a force over the time interval for which it acts
other
- A sudden strong urge or desire to act.
Examples
The little black designer dress had been an impulse buy.
Some people will buy a puppy on impulse without any idea of what is involved.