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Definition of: progesterone
(prō·jes′tə·rōn) noun Biochem.
A hormone from the corpus luteum: isolated as a white, crystalline compound, C21H30O2, and also made synthetically. It is active in preparing the uterus for reception of the fertilized ovum. [<PRO-1 + GE(STATION) + STER(OL) + -ONE]
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