Medical Dictionary

impulse

noun im·pulse \ˈim-ˌpəls\

Medical Definition of IMPULSE

1
:  a wave of excitation transmitted through tissues and especially nerve fibers and muscles that results in physiological activity or inhibition
2
a :  a sudden spontaneous inclination or incitement to some usually unpremeditated action <some uncontrollable impulse…may have driven the defendant to the commission of the murderous act—B. N. Cardozo> b :  a propensity or natural tendency usually other than rational <the fundamental impulse of self-expression—Havelock Ellis>
May 27, 2015
riot act Hear it
a vigorous reprimand or warning
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