im·pulse ( m p ls )n.1. a. An impelling force; an impetus. b. The motion produced by such a force. 2. A sudden wish or urge that prompts an unpremeditated act or feeling; an abrupt inclination: had an impulse to run away; an impulse of regret that made me hesitate; bought a hat on impulse. 3. A motivating force or tendency: "Respect for the liberty of others is not a natural impulse in most men" Bertrand Russell. 4. Electronics A surge of electrical power in one direction. 5. Physics The product obtained by multiplying the average value of a force by the time during which it acts. The impulse equals the change in momentum produced by the force in this time interval. 6. Physiology The electrochemical transmission of a signal along a nerve fiber that produces an excitatory or inhibitory response at a target tissue, such as a muscle or another nerve. adj. Characterized by impulsiveness or acting on impulse: an impulse shopper; impulse buying.
[Latin impulsus, from past participle of impellere, to impel; see impel.] |
impulse Noun 1. a sudden desire or whim 2. an instinctive drive; urge: the mothering impulse 3. Physics a. the product 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 4. Physiol a stimulus transmitted in a nerve or muscle [Latin impulsus incitement]
impulse ( m p ls )1. A sudden flow of electrical current in one direction. 2. An electrical signal traveling along the axon of a neuron. Nerve impulses excite or inhibit activity in other neurons or in the tissues of the body, such as muscles and glands. 3. The change of momentum of a body or physical system over a time interval in classical mechanics, equal to the force applied times the length of the time interval over which it is applied. |
ThesaurusLegend: Synonyms Related Words Antonyms | Noun | 1. | impulse - an instinctive motive; "profound religious impulses"motivation, motive, need - the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior; "we did not understand his motivation"; "he acted with the best of motives" abience - (psychology) an urge to withdraw or avoid a situation or an object adience - (psychology) an urge to accept or approach a situation or an object | | 2. | impulse - a sudden desire; "he bought it on an impulse"desire - the feeling that accompanies an unsatisfied state | | 3. | impulse - the electrical discharge that travels along a nerve fiber; "they demonstrated the transmission of impulses from the cortex to the hypothalamus"action potential - the local voltage change across the cell wall as a nerve impulse is transmitted | | 4. | impulse - (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"electronics - the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices | | 5. | impulse - the act of applying force suddenly; "the impulse knocked him over"drive, driving force, thrust - the act of applying force to propel something; "after reaching the desired velocity the drive is cut off" | | 6. | impulse - an impelling force or strength; "the car's momentum carried it off the road"forcefulness, strength, force - physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man" |
impulse noun 1. urge, longing, desire, drive, wish, fancy, notion, yen ( informal) instinct, yearning, inclination, itch, whim, compulsion, caprice noun 2. force, pressure, push, movement, surge, motive, thrust, momentum, stimulus, catalyst, impetus >> on impulse impulsively, of your own accord, freely, voluntarily, instinctively, impromptu, off the cuff ( informal) in the heat of the moment, off your own bat, quite unprompted
Translations
|
|