pregnanediol

[ prĕg′nān-dīôl ]

n.

A steroid metabolite of progesterone that is biologically inactive; a form of the compound occurs in the urine of pregnant women.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.