- hallucination - illusory perception; a common symptom of severe mental disorder
--1 is a kind of delusion, psychotic belief
--1 has particulars:auditory hallucination, acousma; pseudohallucination; trip; visual hallucination Derived form: verb hallucinate1 - delusion, hallucination - a mistaken or unfounded opinion or idea; "he has delusions of competence"; "his dreams of vast wealth are a hallucination"
--2 is a kind of misconception
--2 has particulars: disorientation, freak outDerived form: verb hallucinate1 - hallucination - an object perceived during a hallucinatory episode; "he refused to believe that the angel was a hallucination"
--3 is a kind of object
Derived form: verb hallucinate1