Meaning of IMPULSE in English

IMPULSE

/im"puls/ , n.

1. the influence of a particular feeling, mental state, etc.: to act under a generous impulse; to strike out at someone from an angry impulse.

2. sudden, involuntary inclination prompting to action: to be swayed by impulse.

3. an instance of this.

4. a psychic drive or instinctual urge.

5. an impelling action or force, driving onward or inducing motion.

6. the effect of an impelling force; motion induced; impetus given.

7. Physiol. a progressive wave of excitation over a nerve or muscle fiber, having either a stimulating or inhibitory effect.

8. Mech. the product of the average force acting upon a body and the time during which it acts, equivalent to the change in the momentum of the body produced by such a force.

9. Elect. a single, usually sudden, flow of current in one direction.

adj.

10. marked by or acting on impulse: an impulse buyer.

11. bought or acquired on impulse: To reduce expenses, shun impulse items when shopping.

[ 1640-50; impulsus pressure, impulse, equiv. to im- IM- 1 + pul- (var. s. of pellere to push) + -sus, var. of -tus suffix of v. action ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .