hallucination

noun
hal·​lu·​ci·​na·​tion | \ hə-ˌlü-sə-ˈnā-shən How to pronounce hallucination (audio) \

Definition of hallucination

1a : a sensory perception (such as a visual image or a sound) that occurs in the absence of an actual external stimulus and usually arises from neurological disturbance (such as that associated with delirium tremens, schizophrenia, Parkinson's disease, or narcolepsy) or in response to drugs (such as LSD or phencyclidine) visual/auditory/olfactory/gustatory/tactile hallucinations a drug-induced hallucination An important aspect of the study of hallucinations is the judgement of reality. How does a patient confer the character of reality on stimuli which, beyond any reasonable doubt, originate in his own mind?— Cesare Davalli et al.
b : the object of a hallucinatory perception wasn't sure if the creature was real or a hallucination
2 : an unfounded or mistaken impression or notion : delusion

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Choose the Right Synonym for hallucination

delusion, illusion, hallucination, mirage mean something that is believed to be true or real but that is actually false or unreal. delusion implies an inability to distinguish between what is real and what only seems to be real, often as the result of a disordered state of mind. delusions of persecution illusion implies a false ascribing of reality based on what one sees or imagines. an illusion of safety hallucination implies impressions that are the product of disordered senses, as because of mental illness or drugs. suffered from terrifying hallucinations mirage in its extended sense applies to an illusory vision, dream, hope, or aim. claimed a balanced budget is a mirage

Examples of hallucination in a Sentence

He could not tell if what he was seeing was real or if it was a hallucination. He has been having hallucinations due to the medication.
Recent Examples on the Web As the older Hernán shares a draft of his hallucination-stirring home brew and speaks about his own personal history, Jessica seems to empty herself out. Justin Changfilm Critic, Los Angeles Times, 7 Apr. 2022 Interrupted by the floating lanterns, your figure becomes a hallucination, akin to a fickle mirage in water. Washington Post, 31 Mar. 2022 Its value is a collective hallucination, dependent on constant salesmanship and, in some cases, deception and market manipulation. Ben Mckenzie, The New Republic, 10 Mar. 2022 Gonzo journalism—Thompson’s unique blend of hyperbolic commentary, satire, invective, hallucination, and media critique—developed unevenly, haphazardly, almost by accident. Peter Richardson, The New Republic, 28 Jan. 2022 Fans are dissecting the hallucination—which saw Nate impregnate Cassie and then watch as a pool-side Cal Jacobs, his father, proceeded to erotically baptize her. Josh St. Clair, Men's Health, 19 Jan. 2022 Euphoria’s second episode opened with an extended hallucination, as Nate Jacobs found himself in and out of the emergency room following the New Year’s Eve party; the party ended with Fez beating Nate’s head in, just to ring in the New Year. Josh St. Clair, Men's Health, 19 Jan. 2022 If love is a hallucination, how best to express it? The New Yorker, 10 Jan. 2022 Symptoms of a rabies infection include anxiety, confusion, insomnia, paralysis, hallucination, fear of water, and difficulty swallowing. Catherine Garcia, The Week, 6 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hallucination.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hallucination

1629, in the meaning defined at sense 1a

History and Etymology for hallucination

see hallucinate

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Learn More About hallucination

Time Traveler for hallucination

Time Traveler

The first known use of hallucination was in 1629

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Dictionary Entries Near hallucination

hallucinate

hallucination

hallucinatory

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Statistics for hallucination

Last Updated

16 Apr 2022

Cite this Entry

“Hallucination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hallucination. Accessed 24 May. 2022.

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More Definitions for hallucination

hallucination

noun
hal·​lu·​ci·​na·​tion | \ hə-ˌlü-sə-ˈnā-shən How to pronounce hallucination (audio) \

Kids Definition of hallucination

: the seeing of objects or the experiencing of feelings that are not real but are usually the result of mental disorder or the effect of a drug

hallucination

noun
hal·​lu·​ci·​na·​tion | \ hə-ˌlüs-ᵊn-ˈā-shən How to pronounce hallucination (audio) \

Medical Definition of hallucination

1 : a sensory perception (as a visual image or a sound) that occurs in the absence of an actual external stimulus and usually arises from neurological disturbance (as that associated with delirium tremens, Lewy body disease, schizophrenia, Parkinson's disease, or narcolepsy) or in response to drugs (as LSD or phencyclidine) visual/auditory/olfactory/gustatory/tactile hallucinations a drug-induced hallucination — compare delusion sense 2, illusion sense 2a
2 : the object of a hallucinatory perception

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