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单词 pyridine
释义

Definition of pyridine in English:

pyridine

noun ˈpɪrɪdiːnˈpɪrəˌdin
mass nounChemistry
  • A colourless volatile liquid with an unpleasant odour, present in coal tar and used chiefly as a solvent.

    A heteroaromatic compound; chemical formula: C₅H₅N

    Example sentencesExamples
    • Plant IDHs differ in the pyridine nucleotide they use as co-substrate and also in their localization in the cell.
    • The structure of niacinamide consists of a pyridine ring with an amide group in position three.
    • The heme b content was quantified by the pyridine hemochrome method.
    • This is a pyridine silver method described by Ranson in 1911 for impregnating unmyelinated nerve fibers.
    • The folic acid pathway provides the essential precursor molecule, pyridine thymidylate, needed in DNA biosynthesis.

Origin

Mid 19th century: from Greek pur 'fire' + -ide + -ine4.

 
 

Definition of pyridine in US English:

pyridine

nounˈpirəˌdēnˈpɪrəˌdin
Chemistry
  • A colorless volatile liquid with an unpleasant odor, present in coal tar and used chiefly as a solvent.

    A heteroaromatic compound; chemical formula: C₅H₅N

    Example sentencesExamples
    • The structure of niacinamide consists of a pyridine ring with an amide group in position three.
    • The heme b content was quantified by the pyridine hemochrome method.
    • The folic acid pathway provides the essential precursor molecule, pyridine thymidylate, needed in DNA biosynthesis.
    • This is a pyridine silver method described by Ranson in 1911 for impregnating unmyelinated nerve fibers.
    • Plant IDHs differ in the pyridine nucleotide they use as co-substrate and also in their localization in the cell.

Origin

Mid 19th century: from Greek pur ‘fire’ + -ide + -ine.

 
 
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更新时间:2024/12/23 19:52:14