a white powder, CHNO, used as an analgesic, as for the relief of rheumatoid arthritis
Origin:
phenyl + but(yric) + az(al)one
See phenylbutazone in American Heritage Dictionary 4
noun
A white or light yellow compound, C19H20N2O2, formerly used as an anti-inflammatory and analgesic drug in the treatment of arthritis, bursitis, and gout.