norethisterone
A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone, which has actions similar…A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.
UK/nɔː.ɹɛˈθɪ.stə.ɹəʊn/US/ˌnɔɹ.əˈθɪ.stəˌɹoʊn/
Значение
значений: 1(неисчисляемое)A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.
Происхождение
From nor- + ethisterone.From nor- + ethisterone.
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Уроки к слову
уроков: 1- A1Исчисляемые и неисчисляемые существительные — Потому что оно может быть неисчисляемым