mestranol

[mes-truh-nawl, -nol]

noun

Pharmacology.

1. an estrogen, C 2 1 H 2 6 O 2 , used in oral contraceptives in combination with a progestin.

mestranol

/ -ˌnəʊl, ˈmɛstrəˌnɒl /

noun

1. a synthetic oestrogen used in combination with progestogens as an oral contraceptive. Formula: C 21 H 26 O 2

Word History and Origins

Origin of mestranol¹

1960–65; contraction and rearrangement of methoxy- and ethynylestradiol, components of the chemical name

Word History and Origins

Origin of mestranol¹

C20: from _m ( _ethyl ) + ( _o ) _estr ( _ogen ) + ( pregn ) an ( e ) (C 21 H 36 ) + _-ol

Example Sentences

One of the steps in the syntheses for preparing norethynodrel resulted in the formation of the potent estrogen mestranol as a very minor byproduct.

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High-dose estrogen pills -- those containing 50 micrograms ethinyl estradiol or 80 micrograms mestranol -- were associated with nearly a three-fold higher risk of breast cancer, she said.

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Risks seemed lower with moderate-dose estrogen pills -- those with 30 to 35 micrograms of ethinyl estradiol or 50 micrograms mestranol were linked to a 1.6 times higher risk of breast cancer.

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