norsteroid
/nɔːˈstɛrɔɪd/ /nɔːˈstɪərɔɪd/Biochemistry
noun
A steroid that lacks a methyl side chain (especially the one containing the carbon atom numbered 19), or in which one of its rings has lost a methylene group.
Origin
1950s; earliest use found in Journal of the Chemical Society. From nor- + steroid.