What does chloroformed mean?
Chloroformed is the past tense and past participle of the verb 'chloroform', which means to render a person unconscious by administering chloroform — a volatile, sweet-smelling liquid once widely used as a general anaesthetic. In practice, this usually involved soaking a cloth or rag in the substance and holding it over the mouth and nose until the subject lost consciousness. The word appears most often in crime fiction, journalism about assaults, and historical accounts of nineteenth-century medicine, when surgeons first adopted chemical anaesthesia for operations. Because chloroform was withdrawn from routine clinical use long ago, the term now carries distinctly dark or period connotations rather than medical ones, and it is overwhelmingly encountered in passive constructions such as 'the guard was chloroformed'. It derives from 'chloroform' itself, a nineteenth-century coinage blending Greek 'chloros' (pale green) with 'formic acid', reflecting the compound's chemical composition.
verbPast tense and past participle of the verb 'chloroform', meaning to render someone unconscious by administering the liquid anaesthetic chloroform.
- To have rendered someone unconscious by administering chloroform, typically by holding a cloth soaked in it over the mouth and nose.
"The victim was chloroformed before the intruder ransacked the apartment."
"The kidnapper had chloroformed the guard before slipping into the vault."
"In early surgical practice, patients were routinely chloroformed to spare them the pain of an operation."
Chloroform was famously used as an anaesthetic in Victorian surgery — and so often appeared in crime fiction that it earned a reputation far more sinister than its medical one.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of chloroformed
Chloroform itself was named in the 1830s by French chemists, combining Greek 'chloros' (yellowish-green) with 'formique' (formic), because the compound was chemically related to formic acid. The verb 'chloroform' followed naturally after the substance became famous as an anaesthetic following its use in childbirth and surgery in the late 1840s, and 'chloroformed' is simply its regular inflection. It shares its 'chlor-' root with related chemical terms such as 'chlorine', 'chloride', 'chlorophyll', and 'chloroplast', all ultimately tracing back to the same Greek adjective for pale green.
Related word forms
How chloroformed is actually used
Almost always appears in passive constructions ('was chloroformed') in narrative, crime, or historical contexts; active use ('he chloroformed her') carries strongly criminal connotations today.
Easily confused with chloroformed
'Chlorinated' means treated or combined with chlorine, whereas 'chloroformed' means rendered unconscious using chloroform.