Dictionary
bu•tor•pha•nol
Pronunciation: (byOO-tôr'fu-nôl", -nol"), [key]—
n. Pharm.
a narcotic analgesic, C
21H
29NO
2, administered by injection to treat moderate to severe pain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.