Rare ·Advanced level

Definitions

Noun

1. 1
   trade names of a narcotic analgesic that can be inhaled and that acts on the central nervous system and may become addictive; used as a veterinary anesthetic and with other drugs before, during, and after surgery; also used as a nonlethal gas to incapacitate people in hostage situations; also abused as a recreational drug wordnet

Synonyms

All synonyms

fentanyl

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.