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
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Of course, this coincides with the rise of fentanyl in the illicit drug supply and its associated carnage.
—
Teri Sforza, Oc Register, 11 Feb. 2026
Grandoit’s rap sheet included selling oxycontin, fentanyl and cocaine.
—Boston Herald Editorial Staff, Boston Herald, 11 Feb. 2026
Montanez allegedly got out of a vehicle and entered the one containing fentanyl before directing the driver to a service plaza on Route 15.
—Justin Muszynski, Hartford Courant, 11 Feb. 2026
Homeland Security has said agents have seized thousands of pounds of methamphetamine, fentanyl and other drugs in recent years that cartels were trying to fly across the border using drones.
—Seung Min Kim, Los Angeles Times, 11 Feb. 2026
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Teri Sforza, Oc Register, 11 Feb. 2026
Grandoit’s rap sheet included selling oxycontin, fentanyl and cocaine.
—Boston Herald Editorial Staff, Boston Herald, 11 Feb. 2026
Montanez allegedly got out of a vehicle and entered the one containing fentanyl before directing the driver to a service plaza on Route 15.
—Justin Muszynski, Hartford Courant, 11 Feb. 2026
Homeland Security has said agents have seized thousands of pounds of methamphetamine, fentanyl and other drugs in recent years that cartels were trying to fly across the border using drones.
—Seung Min Kim, Los Angeles Times, 11 Feb. 2026
See All Example Sentences for fentanyl
Cite this Entry
“Fentanyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fentanyl. Accessed 14 Feb. 2026.
Copy CitationMedical 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.
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