hallucination

nouns

illusory perception; a common symptom of severe mental disorder

hallucination

is derived from

is a type of (narrower)

(psychology) an erroneous belief that is held in the face of evidence to the contrary

a mistaken or unfounded opinion or idea

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

delusion, hallucination

is derived from

an object perceived during a hallucinatory episode

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

hallucination

is derived from

is a type of (narrower)

the focus of cognitions or feelings

"objects of thought"; "the object of my affection"