# fentanyl

> English word · Noun · IPA /ˈfɛn.tə.nɪl/ · frequency rank #34,486

## Definitions
1. 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); N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide.

## Etymology
From phen(yle)th(yl) + anil(ide).

## Common misspellings (13)
`efntanyl`, `fenatnyl`, `fenntanyl`, `fentanly`, `fentannyl`, `fentanyll`, `fentanyyl`, `fentaynl`, `fentnayl`, `fenttanyl`, `fetnanyl`, `ffentanyl`, `fnetanyl`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fentanyl