- a powerful synthetic drug used in medical practice as a narcotic analgesic
WordReference Random House Unabridged Dictionary of American English © 2026
pen•taz•o•cine
(pen taz′ə sēn′),USA pronunciation n. [Pharm.]
- Drugsa synthetic narcotic analgesic, C19H27NO, used chiefly for the relief of moderate to severe pain.
- penta- + (benz)azocine, a component of its chemical name 1960–65
Collins Concise English Dictionary © HarperCollins Publishers::
pentazocine /pɛnˈtæzəʊˌsiːn/ n