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)
Example Sentences
Recent Examples on the Web Officers also located more drugs, including cocaine, heroin, fentanyl and $40,000 in cash. 
From Staff Reports, USA TODAY, 11 Sep. 2022 Cordero pleaded guilty to one count of conspiracy to distribute and to possess with intent to distribute heroin and fentanyl on March 24. Hartford Courant, 29 Aug. 2022 The hip-hop star, whose legal name is Willie Junior Maxwell II, was indicted in September 2021 for allegedly conspiring to distribute heroin and fentanyl on Long Island. Aaron Katersky, ABC News, 22 Aug. 2022 The cause of her death was acute intoxication of heroin and fentanyl. New York Times, 27 July 2022 The woman said the ‘rock’ was either heroin or fentanyl. Joan Rusek, cleveland, 3 July 2022 Unintentional prescription drug overdoses in the state have fallen in the last six years, even as overdoses from other opioids, such as heroin and fentanyl, have climbed dramatically. oregonlive, 29 June 2022 The increase began in the 1990s with overdoses involving opioid painkillers, followed by waves of deaths led by other opioids like heroin and - most recently - illicit fentanyl. Mike Stobbe, Anchorage Daily News, 11 May 2022 Zander says fentanyl is a weapon of mass destruction. Madison Scarpino, Fox News, 24 Aug. 2022 See More
From Staff Reports, USA TODAY, 11 Sep. 2022 Cordero pleaded guilty to one count of conspiracy to distribute and to possess with intent to distribute heroin and fentanyl on March 24. Hartford Courant, 29 Aug. 2022 The hip-hop star, whose legal name is Willie Junior Maxwell II, was indicted in September 2021 for allegedly conspiring to distribute heroin and fentanyl on Long Island. Aaron Katersky, ABC News, 22 Aug. 2022 The cause of her death was acute intoxication of heroin and fentanyl. New York Times, 27 July 2022 The woman said the ‘rock’ was either heroin or fentanyl. Joan Rusek, cleveland, 3 July 2022 Unintentional prescription drug overdoses in the state have fallen in the last six years, even as overdoses from other opioids, such as heroin and fentanyl, have climbed dramatically. oregonlive, 29 June 2022 The increase began in the 1990s with overdoses involving opioid painkillers, followed by waves of deaths led by other opioids like heroin and - most recently - illicit fentanyl. Mike Stobbe, Anchorage Daily News, 11 May 2022 Zander says fentanyl is a weapon of mass destruction. Madison Scarpino, Fox News, 24 Aug. 2022 See More 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.