| afflatus |
creative impulse; inspiration. |
| capricious |
tending to act on impulse; subject to whim or caprice; erratic and unpredictable. |
| compulsion |
an irresistible impulse, usu. to do or say something opposed by one's rational mind. [1/3 definitions] |
| effector |
a cell or an organ such as a muscle or gland that responds to a nerve impulse. |
| feeling |
(often pl.) a sentimental or romantic impulse. [1/10 definitions] |
| gratify |
to satisfy or indulge (a desire, impulse, or the like). [1/2 definitions] |
| motive |
an idea, need, desire, or impulse that causes a person to act in a particular way or do a particular thing; reason. [1/2 definitions] |
| nausea |
a stomach disturbance marked by vomiting or the impulse to vomit; queasiness. [1/2 definitions] |
| notion |
a fanciful idea or impulse. [1/3 definitions] |
| on the spur of the moment |
without much thought; on a sudden impulse. |
| reaction formation |
in psychoanalysis, the expression of a behavior that is opposite to a repressed impulse. |
| reuptake |
in physiology, the reabsorption of a neurotransmitter by a neuron following transmission of a nerve impulse. |
| spontaneous |
happening freely or done by impulse; not forced. [1/3 definitions] |
| sublimate |
to divert the expression of (a crude impulse or desire, often sexual) into a socially acceptable or more ideal form. [1/4 definitions] |
| Thanatos |
(often l.c.) in psychiatry, an instinct or impulse to seek peace in nonexistence, often manifested in aggressive behavior; death instinct. [1/2 definitions] |
| urge |
an involuntary or natural impulse or desire to do something. [1/7 definitions] |
| vasoconstriction |
constriction or narrowing of a blood vessel or vessels, as in response to a nerve impulse. |
| vasodilation |
dilation or widening of a blood vessel or vessels, as in response to a nerve impulse. |
| whim |
a sudden odd or capricious desire, impulse, notion, or change of mind; whimsy; caprice. |