(organic chemistry, particularly in combination) A functional group consisting of a pyrrole ring fused onto another part of the molecule.

(organic chemistry) Any of several isomeric tricyclic heterocycles composed of a pyrrole ring fused to indoline

(organic chemistry) Any heterocyclic ketone derived from pyrrole

plural of pyrrolone

(organic chemistry) Any of several isomeric tetracyclic heterocycles composed of a pyrrole ring fused to a carbazole moiety

plural of pyrroloindoline

(organic chemistry) Any quinone derived from a pyrroloquinoline; the third known redox cofactor in bacteria, after nicotinamide and flavin.

plural of pyrrolobenzodiazepine

(pharmacology) A class of compounds with antibiotic and anti-tumor properties.

(organic chemistry) Any of a family of compounds containing a pyrrole ring fused to the benzene ring of a quinoline