fentanyl

noun

fen·​ta·​nyl ˈfen-tə-ˌnil 

: a synthetic opioid narcotic analgesic C₂₂H₂₈N₂O with pharmacological action similar to morphine that is administered transdermally as a skin patch and in the form of its citrate C₂₂H₂₈N₂O·C₆H₈O₇ is administered orally or parenterally (as by intravenous or epidural injection)

Examples of fentanyl in a Sentence

Recent Examples on the Web

Trump has imposed 25% tariffs on steel and aluminum and tariffs on other products outside the United States-Mexico-Canada Agreement, in some cases ostensibly to address relatively low volumes of fentanyl intercepted at the northern border. —Josh Boak, Chicago Tribune, 6 May 2025

As crossings have dropped nationally, so have deaths involving fentanyl, which can be lethal in minuscule doses. —Riley Robinson, Christian Science Monitor, 6 May 2025

Steve Muth’s only child, Zachary, died at 23 years old after taking a pill laced with fentanyl in February 2021. —Julia Bonavita, FOXNews.com, 5 May 2025

Beverly was charged with distributing less than four grams of fentanyl — which typically carries a potential sentence of between two and four years in prison. —Shelly Bradbury, Denver Post, 5 May 2025

Word History

Etymology

probably alteration of phenethyl, a monovalent radical derived from ethylbenzine, from phen- + ethyl

First Known Use

1964, in the meaning defined above

Medical Definition

fentanyl

noun

fen·​ta·​nyl ˈfent-ᵊn-ˌil 

: a synthetic opioid narcotic analgesic C₂₂H₂₈N₂O with pharmacological action similar to morphine that is administered transdermally as a skin patch and in the form of its citrate C₂₂H₂₈N₂O·C₆H₈O₇ is administered orally or parenterally

Note: Fentanyl is marketed under the trademark Actiq.