hal·​lu·​ci·​nate | \ hə-ˈlü-sə-ˌnāt How to pronounce hallucinate (audio) \
hallucinated; hallucinating

Definition of hallucinate

transitive verb

1 : to affect with visions or imaginary perceptions
2 : to perceive or experience as a hallucination

Other Words from hallucinate

hallucinator \ hə-​ˈlü-​sə-​ˌnā-​tər How to pronounce hallucinate (audio) \ noun

Examples of hallucinate in a Sentence

The patient may hallucinate if she has a fever.
Recent Examples on the Web Overdosed on Benadryl while attempting to hallucinate Asphyxiated while attempting to pass out… Hell to Pray From a complaint filed against the City of Boston in January by the Satanic Temple. Aaron Fagan, Harper’s Magazine , 7 Dec. 2021 The social media platform has influenced stunts involving face wax challenges (yes), eating corn on the cob, to a spinning power drill (yes) and taking enough Benadryl to hallucinate (yes). oregonlive, 24 Aug. 2021 In a spoof of the vampire hysteria that swept over Europe in the eighteenth and early nineteenth centuries, Palma’s characters hallucinate bloodsuckers running amok in the Italian countryside. Alex Ross, The New Yorker, 9 Aug. 2021 Maki continues to hallucinate and babble about his favorite football players, or a scene from a Batman movie, said Reed, his father. Anchorage Daily News, 20 May 2021 But the Benadryl challenge, which emerged in 2020, encouraged people to take an excessive amount of the medication in an attempt to hallucinate. Alia E. Dastagir, USA TODAY, 27 Apr. 2021 Drugs like 'shrooms don’t just make people hallucinate. Sarah Scoles, Popular Science, 9 Nov. 2020 People who hallucinate are said to see _____ elephants; 21. Richard Lederer, San Diego Union-Tribune, 3 Oct. 2020 The Benadryl Challenge is allegedly making the rounds on TikTok, encouraging social media users to overdose on the over-the-counter drug in order to hallucinate. Zee Krstic, Good Housekeeping, 9 Sep. 2020 See More

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

First Known Use of hallucinate

circa 1834, in the meaning defined at transitive sense 1

History and Etymology for hallucinate

Latin hallucinatus, past participle of hallucinari, allucinari to prate, dream, modification of Greek alyein to be distressed, to wander

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Time Traveler for hallucinate

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The first known use of hallucinate was circa 1834

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Dictionary Entries Near hallucinate

hall tree



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Cite this Entry

“Hallucinate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hallucinate. Accessed 4 Jul. 2022.

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More Definitions for hallucinate


hal·​lu·​ci·​nate | \ hə-ˈlüs-ᵊn-ˌāt How to pronounce hallucinate (audio) \
hallucinated; hallucinating

Medical Definition of hallucinate

transitive verb

1 : to affect with visions or imaginary perceptions the patient is not hallucinated
2 : to perceive or experience as a hallucination may hallucinate monsters or attackers— M. J. Horowitz

More from Merriam-Webster on hallucinate

Thesaurus: All synonyms and antonyms for hallucinate

Nglish: Translation of hallucinate for Spanish Speakers


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