Psycho Definition

sīkō
psychos
noun
psychos
American Heritage

(pejorative, slang) A person who is psychotic or otherwise insane.

The loony bin up on the hill is full of psychos.
Wiktionary

(informal) A class, at a college or university, in which psychology is taught.

"I've got anthro, socio, lunch, and psycho."
Wiktionary
Synonyms:
adjective

Mentally deranged; crazy.

American Heritage
Webster's New World

(colloquial or pejoative) Psychotic, or otherwise insane.

Wiktionary
prefix
Mind; mental.
Psychogenic.
American Heritage
Mental activities or processes.
Psychomotor.
American Heritage
Psychohistory.
American Heritage
affix
The mind or mental processes.
Psychology, psychogenesis.
Webster's New World
Psychology; psychological methods, practices, etc.
Psychoanalysis, psychohistory.
Webster's New World

Other Word Forms of Psycho

Noun

Singular:
psycho
Plural:
psychos

Origin of Psycho

  • Greek psūkho- soul, life from psūkhē bhes- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Apocope of psychotic and psychopath.

    From Wiktionary

Psycho Is Also Mentioned In

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