Definition of fentanyl in English:


Line breaks: fen|tanyl
Pronunciation: /ˈfɛntənʌɪl
, -nɪl/


[mass noun] Medicine
A synthetic opiate drug which is a powerful painkiller and tranquillizer.
More example sentences
  • Opiates, including morphine and fentanyl, are powerful painkillers and anesthetics, but they also can slow a person's breathing to a dangerous rate.
  • Described as being 30 to 100 times more powerful than morphine, fentanyl is a synthetic opioid that is also used to provide relief to persons suffering with chronic pain.
  • As a result, pharmaceutical companies have produced alternative opioids such as oxycodone, hydromorphone, fentanyl, methadone, and tramadol.


1960s: apparently from fen- (representing phen-) + -t- + an- + -yl.

Definition of fentanyl in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day retroflex
Pronunciation: ˈretrəˌfleks
turned backward