• synonyms


[ byoo-tawr-fuh-nawl, -nol ]
/ byuˈtɔr fəˌnɔl, -ˌnɒl /

noun Pharmacology.

a narcotic analgesic, C21H29NO2, administered by injection to treat moderate to severe pain.

Nearby words

butler, samuel, butlerage, butlery, buto, butoconazole nitrate, butorphanol, butsu, butsudan, butt, butt bra, butt chisel

Origin of butorphanol

as contraction of the chemical name 17-(cyclobutylmethyl)morphinan-3,14-diol Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019