polycyclic compound
chemical compound having more than one ring
biphenyl
organic compound consisting of two phenyl groups
anthracene
any organic compound consisting of three fused benzene rings in a rectilinear arrangement
spiro compound
any chemical compound having one atom as the only common member of two rings
bridged compound
class of chemical compounds
tricyclic compound
class of chemical compounds
tetracyclic compound
any chemical compound having four interconnected rings
Claus' benzene
hypothetical isomer of benzene