[ mĕt′ə-pŏn′ ]
A narcotic drug derived from morphine and used in the form of its hydrochloride as an analgesic.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for metopon
The distance which the metopon projected into the building is not certainly known.
This is a difficulty which seems to compel the assumption that the metopon was in part of lighter material.