Impulse
Defined in 2 dictionaries — Black's (1910), Anderson (1889)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
As to "irresistible" or "uncontrollable" Impulse, sce Insanity.
A Dictionary of Law
William C. Anderson · 1889
A sudden impelling. An irresistible impulse to commit an act known to be wrong does not constitute the insanity which is a legal defense. The law does not recognize an impulse as ancontro Uable which yet leaves the reasoning powers — including the capacity to appreciate the nature and quality of the particular act — unaffected by mental disease.^ See Insanity.