fentanyl

American  

[fen-tuh-nil] / ˈfɛn tə nɪl /

noun

Pharmacology.

1. a synthetic, short-acting narcotic analgesic and sedative, C 22 H 28 N 2 O, used pharmacologically in anesthesia and neuroleptanalgesia, and also as an illicit drug: Drug dealers are lacing heroin with fentanyl.

   Medics quickly administered fentanyl to the injured soldiers.

   Drug dealers are lacing heroin with fentanyl.

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fentanyl British  

/ ˈfɛntəˌnaɪl /

noun

1. a narcotic drug used in medicine to relieve pain

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Etymology

Origin of fentanyl

First recorded in 1960–65; contraction and respelling of the chemical name N-(1-phenethyl-4-piperidyl)propionanilide

Example Sentences

See Examples For:

fentanyl

Those with vitamin D deficiency received an average of 8 μg more fentanyl during surgery.

From Science Daily ● Sep. 14, 2026

This underscores the absurdity of labeling fentanyl a weapon of mass destruction in the first place.

From Salon ● Aug. 22, 2026

He also took steps to prevent fentanyl overdoses and reduce absenteeism.

From Los Angeles Times ● Jun. 22, 2026

The White House document claimed they had discussed Chinese investment in U.S. industries, purchases of U.S. oil and agricultural products, and ending the flow of fentanyl precursors into the U.S.

From Slate ● May 16, 2026

In a readout, the White House highlighted economic cooperation and building on recent progress to curb fentanyl flow.

From Barron's ● May 14, 2026