noun pl. deliriums or deliria
- a temporary state of extreme mental excitement, marked by restlessness, confused speech, and hallucinations: it sometimes occurs during a fever or in some forms of insanity
- uncontrollably wild excitement or emotion: a delirium of joy
Origin:
L, madness < delirare, to rave, lit., to turn the furrow awry in plowing < de-, from + lira, a line, furrow: see list