First Known Use: 1847
Dictionary
psychosis
noun psy·cho·sis \sī-ˈkō-səs\
: a very serious mental illness that makes you behave strangely or believe things that are not true
plural psy·cho·ses\-ˌsēz\
Full Definition of PSYCHOSIS
: fundamental derangement of the mind (as in schizophrenia) characterized by defective or lost contact with reality especially as evidenced by delusions, hallucinations, and disorganized speech and behavior
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Origin of PSYCHOSIS
New Latin
Other Psychology Terms
Medical Dictionary
psychosis
noun psy·cho·sis \sī-ˈkō-səs\
plural psy·cho·ses \-ˌsēz\
Medical Definition of PSYCHOSIS
: a serious mental disorder (as schizophrenia) characterized by defective or lost contact with reality often with hallucinations or delusions
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