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| nor·eth·is·ter·one [ nàwr e thístə rn ] |
noun |
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| Definition: |
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oral progestogen: a progestogen drug. Use: oral contraceptives, hormone replacement therapy, treatment of premenstrual syndrome, menstrual disorders, endometriosis, cancer.
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| [<nor- + shortening and alteration of ethyne + -ster, INN stem] |
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