contragestive

[ kŏn′trə-jĕstĭv ]

adj.

Capable of preventing gestation, either by preventing implantation or by causing the uterine lining to shed after implantation.

n.

A contragestive drug or agent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.