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psycho

noun psy·cho \ˈsī-(ˌ)kō\

: a person who is mentally ill and often dangerous or violent

plural psychos

Full Definition of PSYCHO

:  a deranged or psychopathic person —not used technically
— psycho adjective
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Origin of PSYCHO

short for psychopath
First Known Use: 1942

Related to PSYCHO

Synonyms
bug, crackbrain, crazy, fool, fruitcake, head case, loon, loony, maniac, nut, nutcase, nutter [British slang], lunatic, psychopath, sickie, sicko, wacko (also whacko)

Other Psychology Terms

fetish, hypochondria, intelligence, mania, narcissism, neurosis, pathological, psychosis, schadenfreude, subliminal
Medical Dictionary

psycho

noun psy·cho \ˈsī-(ˌ)kō\
plural psychos

Medical Definition of PSYCHO

:  a deranged or psychopathic individual—not used technically
—psycho adjective

Learn More About PSYCHO

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3 ENTRIES FOUND:
  1. psycho
  2. psycho-ethical
  3. psych-
Next Word in the Dictionary: psychoacousticsPrevious Word in the Dictionary: psychisticAll Words Near: psycho
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