psychopath

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psychopath

 [si´ko-path]
old term for a person with an antisocial personality disorder.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

psy·cho·path

(sī'kō-path),
Former designation for someone with an antisocial type of personality disorder.
See also: antisocial personality, sociopath.
[psycho- + G. pathos, disease]
Farlex Partner Medical Dictionary © Farlex 2012

psychopath

(sī′kə-păth′)
n.
A person who engages in psychopathic behavior or is affected by antisocial personality disorder.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

psy·cho·path

(sī'kō-path)
Former designation for a person with an antisocial type of personality disorder.
See also: antisocial personality disorder, sociopath
[psycho- + G. pathos, disease]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

psychopath

A person whose behaviour suggests indifference to the rights and feelings of others. A person in whom prior experience has induced an antisocial personality disorder.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
I'm beginning to wake up in cold sweats as I strain to think of somewhere unique, untouched by other parents, that our budget will accommodate and won't mind catering for a herd of psychopathically solipsistic, snot-dribbling, ketchup-trailing savages in ear-splitting stampede mode.
Diane (Marley Shelton) is almost psychopathically upbeat, endlessly repeating feel-good truisms.
In a world in which there is such radical uncertainty, such permanently shifting cognitive ground, such inescapable relativism, people behave psychopathically: they must do what they feel like at each successive instant not because it is right to do so, but because they could literally do no other.
On the one hand, we have the psychopathically careless corporations and, on the other, a Little Englander mentality that has not yet got used to not having an Empire to loot for cheap raw materials, commodities and labour, and resents having to go along with French and German concerns.
From its punchy main title, pic inhabits totally different territory, as it zooms in on weirdo Thomas Waller (Florian Lukas), a sallow, hollow-eyed loner who psychopathically follows around his neighbor, Romanian prostie Wanda (Oana Solomon), with a digital camera.
So imagine my dismay as the main Indian villain of The Missing turns out to be this hideous ogre who is so gothically revolting and so psychopathically amoral that he seems little more than a cardboard cut-out bogey man.