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delirium

American  
[dih-leer-ee-uhm] / dɪˈlɪər i əm /

noun

deliriums, plural deliria plural
  1. Pathology. a more or less temporary disorder of the mental faculties, as in fevers, disturbances of consciousness, or intoxication, characterized by restlessness, excitement, delusions, hallucinations, etc.

  2. a state of violent excitement or emotion.


delirium British  
/ dɪˈlɪrɪəm /

noun

  1. a state of excitement and mental confusion, often accompanied by hallucinations, caused by high fever, poisoning, brain injury, etc

  2. violent excitement or emotion; frenzy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of delirium

1590–1600; < Latin dēlīrium frenzy, equivalent to dēlīr ( āre ) ( see deliration) + -ium -ium

Explanation

Experiencing delirium? Then you're out of your mind and so excited you're hallucinating. Many things can cause delirium, including illness, high stress, and your team winning the World Series after 100 years of trying. Delirium means “madness” in Latin, and for good reason. Patients with high fevers or who suffer severe trauma might experience a state of delirium, full of mental confusion and maybe a little hysteria. And if you’ve ever stayed up all night writing a paper or working hard to meet some deadline, you’ve probably experienced moments of delirium, where you feel crazed and hallucinatory, fueled by sleep deprivation and too much coffee.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Root-like, the other members of Childs’ trio — Dan Chmielinski on bass and Christian Euman on drums — reached out in their solos, engaging in a contrapuntal sense with various Delirium players.

From Los Angeles Times • Feb. 27, 2023

Delirium ensued from the sellout crowd, which had already reached an emotional peak with a rapturous welcome for Hopkins’ predecessor, Lorenzo Romar, returning as an Arizona assistant.

From Seattle Times • Jan. 28, 2023

But there are others, including Destiny and Delirium.

From Salon • Aug. 6, 2022

The lawsuit, filed in California Superior Court in Los Angeles, names both Netflix and Kinetic Content as defendants alongside Kinetic's casting company Delirium TV.

From BBC • Jul. 18, 2022

Delirium generally exists during some stage of the disease, more frequently the last, and is then mild in its character, although active delirium has been observed in the first stage.

From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various

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