hallucination

2 ENTRIES FOUND:

hal·lu·ci·na·tion

noun \hə-ˌlü-sə-ˈnā-shən\

: something (such as an image, a sound, or a smell) that seems real but does not really exist and that is usually caused by mental illness or the effect of a drug

Full Definition of HALLUCINATION

1
a :  perception of objects with no reality usually arising from disorder of the nervous system or in response to drugs (as LSD)
b :  the object so perceived
2
:  an unfounded or mistaken impression or notion :  delusion

Examples of HALLUCINATION

  1. He could not tell if what he was seeing was real or if it was a hallucination.
  2. He has been having hallucinations due to the medication.

First Known Use of HALLUCINATION

1629

Rhymes with HALLUCINATION

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hal·lu·ci·na·tion

noun \hə-ˌlüs-ən-ˈā-shən\   (Medical Dictionary)

Medical Definition of HALLUCINATION

1
: a perception of something (as a visual image or a sound) with no external cause usually arising from a disorder of the nervous system (as in delirium tremens or in functional psychosis without known neurological disease) or in response to drugs (as LSD)—compare delusion 2, illusion 2a
2
: the object of a hallucinatory perception

hallucination

noun    (Concise Encyclopedia)

Perception of objects, sounds, or sensations having no demonstrable reality, usually arising from a disorder of the nervous system or in response to certain drugs (see hallucinogen). Hallucinations are in many ways similar to dreams: they derive their content from perceptions known to memory, though these can be greatly transformed. Hallucinations can result when attention collapses from intense arousal due to extreme anxiety, fatigue, excitement, or other causes. They figure prominently in the diagnosis of schizophrenia.

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