pyr·role (pîr  l )n. A five-membered heterocyclic ring compound, C4H5N, having an odor similar to chloroform, that is the parent compound of protoporphyrin. [Greek purros, red (from p  r, fire; see pyre) + -ole.]pyr·ro lic (p -rlk) adj. |
pyrrole [ˈpɪrəʊl pɪˈrəʊl]
n
(Chemistry / Elements & Compounds) a colourless insoluble toxic liquid having a five-membered ring containing one nitrogen atom, found in many naturally occurring compounds, such as chlorophyll. Formula: C4H5N Also called azole
[from Greek purrhos red, from pur fire + -ole1]
pyrrolic [pɪˈrɒlɪk] adj
| pyrrole (pîrl) 1. Any of a class of organic compounds having a five-member ring composed of four carbon atoms and one nitrogen atom. The pyrrole ring structure is a component of many biologically important compounds, including porphyrins, alkaloids, and certain amino acids. 2. The simplest of this class of compounds, in which a single hydrogen atom is attached to each atom in the ring. It has a pleasant odor similar to that of chloroform. Chemical formula: C4H5N. |
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