Longman Dictionary of Contemporary English homepage

Topic: ILLNESS AND DISABILITY

Date: 1800-1900
Language: Greek
Origin: 'mental illness', from para- ( PARA-) + nous 'mind'

paranoia

 noun
     
par‧a‧noi‧a [uncountable]
1 an unreasonable belief that you cannot trust other people, or that they are trying to harm you or have a bad opinion of you
2 medicalMP a mental illness that makes someone believe that they are very important and that people hate them and are trying to harm them
Definition of paranoia from the Longman Dictionary of Contemporary English within
the topic ILLNESS AND DISABILITY
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