Dictionary.com
Thesaurus.com

ketamine

American  
[kee-tuh-meen, -min] / ˈki təˌmin, -mɪn /

noun

Pharmacology.
  1. a synthetic nonbarbiturate general anesthetic, C 13 H 16 ClNO, used to induce anesthesia, alone or in combination, in surgical or diagnostic procedures of short duration; extensively used in veterinary medicine.


ketamine British  
/ ˈkɛtəmiːn /

noun

  1. a drug, chemically related to PCP, that is used in medicine as a general anaesthetic, being administered by injection; cyclohexylamine

"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

ketamine Scientific  
/ kētə-mēn′ /
  1. A general anesthetic given intravenously or intramuscularly in the form of its hydrochloride salt, used especially for minor surgical procedures in which skeletal muscle relaxation is not required.


Etymology

Origin of ketamine

First recorded in 1965–70; ket- + -amine

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The FDA and DEA each oversee aspects of regulating ketamine.

From The Wall Street Journal Jul. 16, 2026

The findings do more than clarify how ketamine works.

From Science Daily Mar. 8, 2026

But to Heifets’ surprise, many of the patients who reported improved mental health hadn’t received ketamine after all.

From Slate Jan. 30, 2026

Chavez never met with Perry in person, but allowed Plasencia to continue the treatments despite knowing that Plasencia had “little” experience with ketamine treatments, according to his plea agreement.

From Los Angeles Times Dec. 16, 2025

Cheryl Williams, who works in a north Wales rehabilitation centre, has been raising awareness of ketamine issues alongside the sister of drag artist James Lee Williams, better known as The Vivienne.

From BBC Jul. 11, 2025

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training