Word.ws English Dictionary

W-18

W-18 noun: a synthetic opiate opioid that is 100 times more potent than fentanyl and 10,000 times more potent than morphine.

w-18: a synthetic opiate opioid that is 100 times more potent than fentanyl and 10,000 times more potent...
Image: Aethyta, CC BY-SA 3.0, via Wikimedia Commons

Noun

W-18 (uncountable)

  1. A synthetic opiate opioid that is 100 times more potent than fentanyl and 10,000 times more potent than morphine.
    Synonyms:
    1-(4-nitrophenylethyl)piperidylidene-2-(4-chlorophenyl)sulfonamide, CAS 93101-02-1, -4-chloro-N-(1-(2-(4-nitrophenyl)ethyl)piperidin-2-ylidene)benzenesulfonamide

Synonyms of W-18

  • 1-(4-nitrophenylethyl)piperidylidene-2-(4-chlorophenyl)sulfonamide
  • CAS 93101-02-1
  • -4-chloro-N-(1-(2-(4-nitrophenyl)ethyl)piperidin-2-ylidene)benzenesulfonamide

Questions about W-18

What does W-18 mean?
W-18 means a synthetic opiate opioid that is 100 times more potent than fentanyl and 10,000 times more potent than morphine.
What part of speech is W-18?
W-18 is a noun.

Words near W-18 in the dictionary

  1. w**ks
  2. w*nk
  3. w*nker
  4. w*nkers
  5. w*nks
  6. W-18
  7. W-2
  8. W-2 employee
  9. W-2 employees
  10. W-2s
  11. W-8BEN

Source and license

Adapted from Wiktionary: W-18 (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “W-18.” Word.ws, https://word.ws/w-18. Based on Wiktionary, CC BY-SA 4.0.