Standard Lemma guide

carfentanil

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /kɑːˈfɛn.tə.nɪl/
  • General-American: /kɑɹˈfɛn.təˌnɪl/

1

noun

Meaning 1

A narcotic painkiller that is four orders of magnitude more potent than morphine, used for tranquilizing large animals and abused as a recreational drug.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: chemistry, medicine, natural-sciences, organic-chemistry, pharmacology, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: 4-carbomethoxyfentanyl, Wildnil, super fent, carfent

Antonyms: none provided

History

Etymology

From car(boxylate) + -fentanil (“opioid receptor agonist, analgesic”).

Across languages

Translations

3 source translations are retained for this English entry.

  • French: carfentanyl — Translations
  • French: carfentanil — Translations
  • Spanish: carfentanil — Translations