adjective: (organic chemistry) Of a ring compound, especially a heterocycle, which also has a fused benzene ring.
noun: (organic chemistry) A divalent radical formed by the removal of two adjacent hydrogen atoms from a benzene ring.
noun: (organic chemistry) Sometimes used in place of the phenyl group.
noun: (informal) Clipping of benzodiazepine. [(pharmacology) Any of a class of psychoactive drugs, structured upon diazepine, used in the treatment of anxiety, insomnia and other related disorders.]
