What does chloralism mean?
Chloralism is a medical term for poisoning caused by taking chloral hydrate in excessive or prolonged amounts. Chloral hydrate was historically prescribed as a hypnotic and sedative, but its use carried serious risks of respiratory depression, cardiovascular disturbance, and dependence. The condition became particularly associated with nineteenth- and early twentieth-century medical practice, when chloral was widely used and sometimes overprescribed. In modern writing, chloralism is mainly encountered in medical, toxicological, and historical sources; it is not a term for ordinary drowsiness or routine intoxication. The word can refer both to the toxic state produced by overdose and, in older usage, to a pattern of habitual use accompanied by physical dependence. Because chloral hydrate is now largely obsolete as a hypnotic in human medicine, chloralism chiefly preserves an older pharmacological history while remaining useful in clinical and forensic discussion. It should be distinguished from chloral itself, the chemical agent, and from chloral hydrate, the preparation historically taken.
nounPoisoning caused by excessive or prolonged use of chloral hydrate, historically used as a sedative and hypnotic. In older usage, the term also referred to habitual use of chloral hydrate with physical dependence.
- Poisoning or a toxic state resulting from excessive or prolonged use of chloral hydrate.
"The physician diagnosed chloralism in a patient who had been taking chloral hydrate well beyond the prescribed dose."
"The physician diagnosed chloralism in a patient who had been taking chloral hydrate well beyond the prescribed dose."
"Historical accounts of nineteenth-century hospitals often describe chloralism among patients treated with powerful sedatives."
Rare and largely unnecessary; chloralism is normally used in the singular or as an uncountable medical label.
"The report documented two chloralisms and their treatment."
Chloralism preserves the darker side of Victorian medicine, when chloral hydrate was both a celebrated sedative and a potentially dangerous dependence.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does chloralism come from?
Chloralism was formed in English from chloral plus the learned suffix -ism, a term used to denote a condition or abnormal state. Chloral was a nineteenth-century German chemical name that entered English chemical terminology, while chloral hydrate and chloralose are related names built on the same base. The suffix ultimately derives from Greek -ismos through Latin, where it commonly marks a condition, action, or abnormal state.
How chloralism is actually used
This is primarily a formal medical, toxicological, and historical term. It is not used for ordinary drowsiness or routine intoxication, and modern references use it chiefly when discussing chloral hydrate, which is now largely obsolete as a hypnotic in human medicine.
Easily confused with chloralism
Chloral is the chemical compound itself, whereas chloralism is the clinical condition caused by toxic exposure to chloral hydrate.