| 释义 |
nor-
combining form
Etymology: International Scientific Vocabulary, from normal (I)
1. : parent compound from which (a specified compound) may be regarded as derived (as by removal of side chains from a ring system) — especially in names of terpenes
< norbornane >
2. : compound of normal structure isomeric with the one to the name of which it is prefixed
< norleucine >
3. : homologue lower by one methylene group — especially in names of steroids and alkaloids
< norcholane >
< nornicotine > |