Main entry: hallucination
Definition: an object perceived during a hallucinatory episode
Usage: he refused to believe that the angel was a hallucination
Main entry: hallucination, delusion
Definition: a mistaken or unfounded opinion or idea
Usage: he has delusions of competence; his dreams of vast wealth are a hallucination
Main entry: hallucination
Definition: illusory perception; a common symptom of severe mental disorder