Tetracyclic steroid nucleus, the group of four fused rings forming the framework or parent substance of the steroids. ... Synonym: perhydrocyclopenta[a]phenanthrene, steroid nucleus, terminal nuclei. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Tetracyclic steroid nucleus, the group of four fused rings forming the framework or parent substance of the steroids. ... Synonym: perhydrocyclopenta[a]phenanthrene, steroid nucleus, terminal nuclei. ... (05 Mar 2000) ...