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Any of several synthetic progestational substances that mimic some or all of the actions of progesterone, used as contraceptives either alone or in combination with estrogen, and with estrogen in hormone replacement therapy.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(proʊˈdʒɛs tɪn)

also pro•ges•to•gen

(-ˈdʒɛs tə dʒən)

any substance having progesteronelike activity.
[1925–30; pro-1 + gest (ation) + -in1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.progestin - any of a group of steroid hormones that have the effect of progesterone
sex hormone, steroid hormone, steroid - any hormone affecting the development and growth of sex organs
Lipo-Lutin, progesterone - a steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy
megestrol, megestrol acetate - a synthetic progestational compound used to treat endometrial carcinoma
norethandrolone, norethindrone, norethindrone acetate, Norlutin - a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis
norethynodrel - a progesterone derivative used in oral contraceptives and in the control of menstruation and the treatment of abnormal uterine bleeding
norgestrel - synthetic progestin used in oral contraceptives
medroxyprogesterone, Provera - a progestin compound (trade name Provera) used to treat menstrual disorders
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Mode of action of dl-norgestrel and ethinylestradiol combination in postcoital contraception.
(1977), "Ethinylestradiol and DL-norgestrel as a Postcoital Contraceptive," Fertil Steril.
A multicenter clinical investigation employing ethinyl estradiol combined with dl-norgestrel as a posteoital contraceptive agent.