A @CT07545@ name for a polycyclic parent structure having the maximum number of non-@C01437@ and at least one ortho fusion. Name formation involves the dissection of the structure into contiguous components having recognized trivial or semisystematic names, one of which is selected as the 'base component'. @A00512@ of the other components is described by prefixes.
Blue Book Guide, p. 14 [Terms] [Book]