Medical Dictionary

paranoia


paranoia

noun para·noia \ˌpar-ə-ˈni-ə\

Definition of PARANOIA

1
:  a psychosis characterized by systematized delusions of persecution or grandeur usually without hallucinations
2
:  a tendency on the part of an individual or group toward excessive or irrational suspiciousness and distrustfulness of others
March 04, 2015
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