hallucinationnoun [ C or U ]
uk/həˌluː.sɪˈneɪ.ʃən/us/həˌluː.səˈneɪ.ʃən/an experience in which you see, hear, feel, or smell something that does not exist, usually because you are ill or have taken a drug:
A high temperature can cause hallucinations.
auditory/olfactory hallucinations
Thesaurus: synonyms and related words
Dreaming
- be hearing/imagining/seeing things idiom
- be miles away idiom
- daydream
- daydreaming
- daze
- dream
- dreamless
- fantasist
- fantasize
- hallucinate
- hallucinatory
- in a dream idiom
- nightmare
- optical illusion
- out of 2
- out of it idiom
- reverie
- thing
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