(Latin: madness; crazy, rave, deranged; literally, to go off the furrow; from delirare, "to turn aside from the furrow", whence arose the meanings "to deviate, to become deranged, to be crazy, or to be delirious")

acute delirium
1. Delirium of recent, rapid onset.
2. A suddenly appearing and severe delirium lasting for only a short time.
alcohol withdrawal delirium (s) (noun), alcohol withdrawal deliriums (or) deliria (pl)
An acute organic mental disorder resulting from a recent cessation or reduction in alcohol consumption with the essential characteristic being delirium: "Alcohol withdrawal delirium is an autonomic hyperactivity; that is, tachycardia (fast heart beat), sweating, and elevated blood pressure is also present. It was formerly called delirium tremens."

"Another characteristic of alcohol withdrawal delirium includes the DTs, 'the horrors', 'the shakes', or 'rum fits'; literally, 'shaking delirium' or 'trembling madness' (in Latin). It is an acute episode of delirium which is usually caused by withdrawal, or abstinence, from alcohol following habitual excessive drinking."

alcohol withdrawal delirium tremens (s) (noun)
A severe form of alcohol withdrawal that involves sudden and severe mental or neurological changes: "Delirium tremens can occur after a period of heavy alcohol drinking; especially, when the person does not eat enough food."

Alcohol withdrawal delirium may also be triggered by head injury, infection, or illness in people with a history of heavy use of alcohol."

"It is most common in people who have a history of alcohol withdrawal; especially, in those who drink the equivalent of seven to eight pints of beer (or one pint of "hard" liquor) every day for several months. Delirium tremens also commonly affects those with a history of habitual alcohol use or alcoholism that has existed for more than ten years."

"Alcohol withdrawal delirium tremens symptoms occur because of the toxic effects of alcohol on the brain and nervous system. They may be severe and get worse very quickly which is a life-threatening condition that requires immediate medical attention."

"The treatment of alcohol withdrawal delirium tremens includes observation, comfort care, and in some cases medication."

anxious delirium
Delirium in which the predominating symptom is an incoherent apprehension or anxiety.
collapse delirium
Delirium caused by extreme physical depression induced by a shock, profuse hemorrhage, exhausting labor, etc.
1. A poison which occasions a persistent delirium, or mental aberration; such as, belladonna.
2. Capable of producing delirium.
3. A drug which may produce delirium.

4. A delirious person.
1. Producing, or tending to produce, delirium.
2. Any substance which tends to cause delirium.
1. Marked by uncontrolled excitement or emotion; ecstatic; delirious joy.
2. Irrational as a temporary result of a physical condition; such as, fever, poisoning, or brain injury.
3. Extremely excited or emotional: "She was delirious with joy when she won the "actress of the year" award."
1. As if in a delirium: "He was talking deliriously."
2. In a delirious manner.
1. Marked by uncontrolled excitement or emotion.
2. The state, or condition, of being delirious; delirium.
delirium (s), deliria (pl)
1. Usually a brief state of excitement and mental confusion often accompanied by hallucinations.
2. A state of violent mental agitation marked by extreme restlessness, confusion, and sometimes hallucinations; which may be caused by fever, poisoning, or brain injury.
3. A temporary state of mental confusion, fluctuating consciousness, extreme excitement or emotion resulting from high fever, intoxication, shock, or other causes.

It is characterized by anxiety, disorientation, hallucinations, delusions, uncontrolled excitement or emotion, and incoherent speech.

4. Etymology: from Latin delirium, "madness"; from deliriare, "to be crazy, to rave"; literally, "to go off the furrow"; a plowing metaphor, from the phrase de-, "off, away" + lira, "the earth thrown up between two furrows, furrow".

Delirium tremens is Modern Latin, "trembling delirium"; introduced in 1813 by British physician Thomas Sutton, for "that form of delirium which is rendered worse by bleeding, but improved by opium."

febrile delirium
The delirium resulting from fever.
low delirium
1. Delirium marked by confusion of ideas and slowness of mental action rather than by excitement.
2. Delirium in which there is little excitement, either mental or motor, the ideas being confused and incoherent, but following each other slowly.
"Dream delirium" is a term to which some French psychiatrists apply to the group of psychoses characterized by delirium.

Delirium tremens is the prototype of this group and is considered to be essentially a prolonged dream. Fever deliria are also part of this group, because they are so closely related to dreams.

Although it is true that hallucination can be interpreted in the same way as dreams, this does not mean that deliria, schizophrenic hallucinations, and dreams are etiologically the same, as this term would imply.

posttraumatic delirium, post-traumatic delirium (s); post-traumatic deliriums, post-traumatic deliria (pl) (nouns)
Delirium caused by a structural traumatic brain injury.

Inter-related cross references, directly or indirectly, involving the "mind, mental" word units: anima-; anxi-; hallucina-; menti-; moro-; noo-; nous; phreno-; psych-; thymo-2.