1) Progestin 2) Progestogen 
<chemical> (17 alpha)-17-hydroxy-19-norpregn-5(10)-en-20-yn-3-one. A synthetic progestational hormone with actions and uses similar to those of progesterone. It has been used in the treatment of functional uterine bleeding and endometriosis. As a contraceptive, it has usually been administered in combination with mestranol. ... Pharmacologica...
(nor″ә-thi´no-drәl) a progestin used in treatment of abnormal uterine bleeding, amenorrhea, and endometriosis and, in combination with an estrogen, as an oral contraceptive.
[n] - a progesterone derivative used in oral contraceptives and in the control of menstruation and the treatment of abnormal uterine bleeding
noun a progesterone derivative used in oral contraceptives and in the control of menstruation and the treatment of abnormal uterine bleeding
a progestin, CHO, used in combination with an estrogen in some oral contraceptives.