Wiktionary
tetracyclic
a. 1 (context organic chemistry English) Having four rings 2 (context medicine English) Describing any pharmaceutical based upon tetracycline
Wikipedia
Tetracyclic
Tetracyclic may refer to
- any of a number of cyclic compounds containing four rings. They have various pharmaceutical uses; see Tetracyclic drug group.
- cyclic flowers constructed of four whorls.