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单词 pyrrole
释义

Definition of pyrrole in English:

pyrrole

noun ˈpɪrəʊlˈpɪroʊl
mass nounChemistry
  • A weakly basic sweet-smelling liquid compound present in coal tar.

    A heteroaromatic compound; chemical formula: C₄H₄NH

    Example sentencesExamples
    • The Netropsin ligand consists of a guanidinium, two pyrrole, and a propylamidinium part.
    • The free-base form of such porphyrins contains two pyrrole nitrogens.
    • This step is followed by polymerising pyrrole vapours to produce a foam composite.
    • This would make this particular pyrrole group unequivalent with the others.

Origin

Mid 19th century: from Greek purrhos 'reddish' + Latin oleum 'oil'.

 
 

Definition of pyrrole in US English:

pyrrole

nounˈpɪroʊlˈpirōl
Chemistry
  • A weakly basic sweet-smelling liquid compound present in bone oil and coal tar.

    A heteroaromatic compound; chemical formula: C₄H₄NH

    Example sentencesExamples
    • This step is followed by polymerising pyrrole vapours to produce a foam composite.
    • The Netropsin ligand consists of a guanidinium, two pyrrole, and a propylamidinium part.
    • This would make this particular pyrrole group unequivalent with the others.
    • The free-base form of such porphyrins contains two pyrrole nitrogens.

Origin

Mid 19th century: from Greek purrhos ‘reddish’ + Latin oleum ‘oil’.

 
 
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更新时间:2025/2/5 12:16:19