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progesterone

(Science: 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. A steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy.A type of hormone in female mammals with the function of maintaining pregnancy. It is secreted by the corpus luteum and placenta, and its production is stimulated by the presence of other hormones, LH and LTH.