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psychosis
8 dictionary results for: Psychosis
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
psy·cho·sis       [sahy-koh-sis] Pronunciation Key
–noun, plural -ses       [-seez] Pronunciation Key.
1.a mental disorder characterized by symptoms, such as delusions or hallucinations, that indicate impaired contact with reality.
2.any severe form of mental disorder, as schizophrenia or paranoia.

[Origin: 1840–50; < LGk psȳ́chōsis animation, principle of life. See psych-, -osis]
American Heritage Dictionary - Cite This Source - Share This
psy·cho·sis       (sī-kō'sĭs)  Pronunciation Key 
n.   pl. psy·cho·ses (-sēz)
A severe mental disorder, with or without organic damage, characterized by derangement of personality and loss of contact with reality and causing deterioration of normal social functioning.

Online Etymology Dictionary - Cite This Source - Share This
psychosis 
1847, "mental derangement," from Gk. psykhe- "mind" (see psyche) + Mod.L. -osis "abnormal condition." Gk. psykhosis meant "animation, principle of life."

WordNet - Cite This Source - Share This
psychosis

noun
any severe mental disorder in which contact with reality is lost or highly distorted 

The American Heritage Science Dictionary - Cite This Source - Share This
psychosis       (sī-kō'sĭs)  Pronunciation Key 
Plural psychoses (sī-kō'sēz)
A mental state caused by psychiatric or organic illness, characterized by a loss of contact with reality and an inability to think rationally. A psychotic person often behaves inappropriately and is incapable of normal social functioning.

psychotic adjective (sī-kŏt'ĭk)

American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
psychosis [(seye-koh-sis)]

A severe mental disorder, more serious than neurosis, characterized by disorganized thought processes, disorientation in time and space, hallucinations, and delusions. Paranoia, manic depression, megalomania, and schizophrenia are all psychoses. One who suffers from psychosis is psychotic.


American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

psychosis psy·cho·sis (sī-kō'sĭs)
n. pl. psy·cho·ses (-sēz)
A severe mental disorder, with or without organic damage, characterized by derangement of personality and loss of contact with reality and causing deterioration of normal social functioning.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Psychosis

Psy*cho"sis\, n. [NL. See Psycho-.]

1. Any vital action or activity. --Mivart.

2. (Med.) A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.

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