1. [ noun ] (psychology,psychiatry) illusory perception; a common symptom of severe mental disorder
Related terms: delusion acousma pink_elephants pseudohallucination trip acousma chromatism visual_hallucination hallucinate
2. [ noun ] an object perceived during a hallucinatory episode

"he refused to believe that the angel was a hallucination"

Related terms: object hallucinate
3. [ noun ] a mistaken or unfounded opinion or idea
Synonyms: delusion

"he has delusions of competence" "his dreams of vast wealth are a hallucination"

Related terms: misconception disorientation hallucinate
Similar spelling:   hallucinating