ACOG (American College of Obstetricians and Gynecologists): The American College of Obstetricians and Gynecologists is an organization concerned with the quality of OB/Gyn practice in the U.S. It is called 'a cog.' The members of ACOG are 'Women's Health Care Physicians.' ACOG is (in their own words) 'the nation's leading group of professionals pro...