Simple Definition of psychosis
: a very serious mental illness that makes you behave strangely or believe things that are not true
Full Definition of psychosis
plural psy·cho·sesplay \-ˌsēz\
: 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
Examples of psychosis
The patient suffers from some kind of psychosis.
Origin of psychosis
First Known Use: 1847
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