Dictionary.com

delirium

[ dih-leer-ee-uhm ]
/ dɪˈlɪər i əm /
Save This Word!

noun, plural de·lir·i·ums, de·lir·i·a [dih-leer-ee-uh]. /dɪˈlɪər i ə/.
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.
a state of violent excitement or emotion.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of delirium

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

OTHER WORDS FROM delirium

sem·i·de·lir·i·um, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for delirium

delirium
/ (dɪˈlɪrɪəm) /

noun plural -liriums or -liria (-ˈlɪrɪə)
a state of excitement and mental confusion, often accompanied by hallucinations, caused by high fever, poisoning, brain injury, etc
violent excitement or emotion; frenzy

Derived forms of delirium

deliriant, adjective

Word Origin for delirium

C16: from Latin: madness, from dēlīrāre, literally: to swerve from a furrow, hence be crazy, from de- + līra ridge, furrow
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
FEEDBACK