le·vo·nor·ges·trel (lē'və-nôr-jĕsʹtrəl) n.
The levorotatory form of norgestrel, used in oral contraceptives and in contraceptives implanted subdermally. In implant form it can prevent pregnancy for up to five years.

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Universalium. 2010.

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  • Levonorgestrel — Nombre (IUPAC) sistemático …   Wikipedia Español

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  • Levonorgestrel — Lévonorgestrel Lévonorgestrel Général Nom IUPA …   Wikipédia en Français

  • Lévonorgestrel — Général Nom IUPAC …   Wikipédia en Français

  • levonorgestrel — /lē vō nör jesˈtrəl/ noun A hormone used in oral contraceptives, esp as an emergency contraceptive taken a few hours after intercourse ORIGIN: The l(a)evorotatory form of the hormone norgestrel …   Useful english dictionary

  • Levonorgestrel — Strukturformel Allgemeines Freiname Levonorgestrel Andere Namen …   Deutsch Wikipedia

  • levonorgestrel — A form of the hormone progesterone that is made in the laboratory and used to prevent pregnancy. It is being studied in the prevention of ovarian and endometrial cancer, and in the treatment of other conditions. Levonorgestrel is a type of oral… …   English dictionary of cancer terms

  • levonorgestrel — noun Etymology: lev + norgestrel, a progestin Date: 1977 the levorotatory form of a synthetic progestin C21H28O2 used especially in oral contraceptives …   New Collegiate Dictionary

  • levonorgestrel — noun A synthetic progestogen used as an active ingredient in some hormonal contraceptives …   Wiktionary

  • levonorgestrel — le·vo·nor·ges·trel .lē və nȯr jes trəl n the levorotatory form of norgestrel used in birth control pills and contraceptive implants see NORPLANT * * * n. a synthetic female sex hormone a progestogen used mainly in oral contraceptive, either in… …   Medical dictionary

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