Definition of levonorgestrel in English:

levonorgestrel

noun ˌliːvəʊnɔːˈdʒɛstr(ə)lˌlēvənôrˈjestrəl

mass nounBiochemistry

A synthetic steroid hormone which has a similar effect to progesterone and is used in some contraceptive pills.
〔生化〕左旋18-甲基炔诺酮，乙基羟基二降孕甾烯炔酮
Example sentencesExamples
- Plan B uses a form of the synthetic hormone progestin, called levonorgestrel, to block ovulation and fertilization of the egg in a process similar to what happens with use of traditional birth control pills.
- Certain drugs such as corticosteroids, anti-epileptic medicines like phenytoin, and oral contraceptives containing levonorgestrel or norethisterone, may aggravate acne.
- No studies have specifically compared mifepristone with levonorgestrel.
- We have Progestasert (a progesterone IUD), which is still available as well as the newer Mirena, which relies on the hormone levonorgestrel, a synthetic progesterone.
- It consists of the hormone levonorgestrel, a common ingredient in birth control pills.

Origin

1970s: from levo- (it being a laevorotatory isomer) + norgestrel, a synthetic steroid hormone.

Definition of levonorgestrel in US English:

levonorgestrel

nounˌlēvənôrˈjestrəl

Biochemistry

A synthetic steroid hormone which has a similar effect to progesterone and is used in some contraceptive pills.
〔生化〕左旋18-甲基炔诺酮，乙基羟基二降孕甾烯炔酮
Example sentencesExamples
- We have Progestasert (a progesterone IUD), which is still available as well as the newer Mirena, which relies on the hormone levonorgestrel, a synthetic progesterone.
- No studies have specifically compared mifepristone with levonorgestrel.
- Plan B uses a form of the synthetic hormone progestin, called levonorgestrel, to block ovulation and fertilization of the egg in a process similar to what happens with use of traditional birth control pills.
- It consists of the hormone levonorgestrel, a common ingredient in birth control pills.
- Certain drugs such as corticosteroids, anti-epileptic medicines like phenytoin, and oral contraceptives containing levonorgestrel or norethisterone, may aggravate acne.

Origin

1970s: from levo- (it being a levorotatory isomer) + norgestrel, a synthetic steroid hormone.

单词	levonorgestrel
释义	Definition of levonorgestrel in English: levonorgestrel noun ˌliːvəʊnɔːˈdʒɛstr(ə)lˌlēvənôrˈjestrəl mass nounBiochemistry A synthetic steroid hormone which has a similar effect to progesterone and is used in some contraceptive pills. 〔生化〕左旋18-甲基炔诺酮，乙基羟基二降孕甾烯炔酮 Example sentencesExamples Plan B uses a form of the synthetic hormone progestin, called levonorgestrel, to block ovulation and fertilization of the egg in a process similar to what happens with use of traditional birth control pills. Certain drugs such as corticosteroids, anti-epileptic medicines like phenytoin, and oral contraceptives containing levonorgestrel or norethisterone, may aggravate acne. No studies have specifically compared mifepristone with levonorgestrel. We have Progestasert (a progesterone IUD), which is still available as well as the newer Mirena, which relies on the hormone levonorgestrel, a synthetic progesterone. It consists of the hormone levonorgestrel, a common ingredient in birth control pills. Origin 1970s: from levo- (it being a laevorotatory isomer) + norgestrel, a synthetic steroid hormone. Definition of levonorgestrel in US English: levonorgestrel nounˌlēvənôrˈjestrəl Biochemistry A synthetic steroid hormone which has a similar effect to progesterone and is used in some contraceptive pills. 〔生化〕左旋18-甲基炔诺酮，乙基羟基二降孕甾烯炔酮 Example sentencesExamples We have Progestasert (a progesterone IUD), which is still available as well as the newer Mirena, which relies on the hormone levonorgestrel, a synthetic progesterone. No studies have specifically compared mifepristone with levonorgestrel. Plan B uses a form of the synthetic hormone progestin, called levonorgestrel, to block ovulation and fertilization of the egg in a process similar to what happens with use of traditional birth control pills. It consists of the hormone levonorgestrel, a common ingredient in birth control pills. Certain drugs such as corticosteroids, anti-epileptic medicines like phenytoin, and oral contraceptives containing levonorgestrel or norethisterone, may aggravate acne. Origin 1970s: from levo- (it being a levorotatory isomer) + norgestrel, a synthetic steroid hormone.
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