| 释义 |
norsteroid Biochem.|nɔːˈstɪərɔɪd, -ˈstɛrɔɪd|
[f. nor- + steroid.]
A steroid lacking a methyl side chain (esp. the one containing the carbon atom numbered 19), or having one of its rings contracted by one methylene group.
1950Jrnl. Chem. Soc. 367 The synthetic approach to nor-steroid hormones has now been greatly simplified by Birch and Mukherji's method of reduction. 1954Ibid. 1984 Values for 2-substituted a-norsteroids..may be considered. 1970Indian Jrnl. Biochem. VII. 116/1 Since the introduction of 19-norsteroids as the synthetic progestational agents, it has become necessary to know their role as regulators of metabolic processes. |