出典:Wiktionary
出典:『Wiktionary』 (2025/08/19 16:22 UTC 版)
From levo- + norgestrel.
levonorgestrel (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/02 18:42 UTC 版)
Levonorgestrel (or l-norgestrel or D-norgestrel) is a second generation synthetic progestogen used as an active ingredient in some hormonal contraceptives.