One of the mysteries of the English language finally explained.
A weakly basic sweet-smelling liquid compound present in bone oil and coal tar.
A heteroaromatic compound; chemical formula: C₄H₄NH
- ‘This step is followed by polymerising pyrrole vapours to produce a foam composite.’
- ‘This would make this particular pyrrole group unequivalent with the others.’
- ‘The Netropsin ligand consists of a guanidinium, two pyrrole, and a propylamidinium part.’
- ‘The free-base form of such porphyrins contains two pyrrole nitrogens.’
Mid 19th century: from Greek purrhos ‘reddish’ + Latin oleum ‘oil’.
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