a colorless, pungent, slightly basic liquid, CHN, found in bile pigments, chlorophyll, and hematin, and obtained from coal tar, bone oil, etc.
Origin of pyrroleGerman pyrrol ; from Classical Greek pyrrhos, fiery (; from pyr, fire) + -ol, -ole
A five-membered heterocyclic ring compound, C4H5N, having an odor similar to chloroform, that is the parent compound of protoporphyrin. Also called azole.
Origin of pyrroleGreek purros, red (from p&umacron;r, fire; see pyre) + –ole.