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词汇 dihydric
释义

Definition of dihydric in English:

dihydric

adjective dʌɪˈhʌɪdrɪkdīˈhīdrik
Chemistry
  • (of an alcohol) containing two hydroxyl groups.

    〔化〕二羟基的,双氢的

    Example sentencesExamples
    • Polyurethanes are created from dihydric alcohols and diisocyanate monomers.
    • This early work was based on toluene diisocyanate reacted with dihydric alcohols.
    • Of the four dihydric alcohols, ethylene glycol was superior to the other three alcohols in the smoothness and color of the deposit and the cathodic current efficiency.
    • Aliphatic dihydric alcohols are known as glycols.
    • Subsequently, the polyphenol was further separated into dihydric phenols and monohydric phenol.

Origin

Late 19th century: from di-1 'two' + hydrogen + -ic.

Definition of dihydric in US English:

dihydric

adjectivedīˈhīdrik
Chemistry
  • (of an alcohol) containing two hydroxyl groups.

    〔化〕二羟基的,双氢的

    Example sentencesExamples
    • Polyurethanes are created from dihydric alcohols and diisocyanate monomers.
    • Of the four dihydric alcohols, ethylene glycol was superior to the other three alcohols in the smoothness and color of the deposit and the cathodic current efficiency.
    • Aliphatic dihydric alcohols are known as glycols.
    • This early work was based on toluene diisocyanate reacted with dihydric alcohols.
    • Subsequently, the polyphenol was further separated into dihydric phenols and monohydric phenol.

Origin

Late 19th century: from di- ‘two’ + hydrogen + -ic.

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