| progestational | 1. Favouring pregnancy; conducive to gestation; capable of stimulating the uterine changes essential for implantation and growth of a fertilised ovum. 2. Referring to progesterone, or to a drug with progesterone-like properties. (05 Mar 2000) |
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| progestational hormone | <biochemistry, gynaecology> Produced in the corpus luteum, as an antagonist of oestrogens. Promotes proliferation of uterine mucosa and the implantation of the blastocyst, prevents further follicular development. (18 Nov 1997) |
| progestational hormones | A class of sex hormones associated with certain changes in the uterus and vagina during the menstrual cycle. They are necessary for the development of mammary tissue and for the maintenance of pregnancy. (12 Dec 1998) |
| progestational hormones, synthetic | Compounds obtained by chemical synthesis that possess progestational activity, but differ in structure from naturally occurring progestational hormones. (12 Dec 1998) |