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单词 usnic acid
释义

Definition of usnic acid in English:

usnic acid

nounˈʌznɪkˌəsnik ˈasid
mass nounBiochemistry
  • A yellow crystalline compound which is present in many lichens and is used as an antibiotic.

    〔生化〕松萝酸,地衣酸

    A tricyclic phenol; chemical formula: C₁₈H₁₆O₇

    Example sentencesExamples
    • I don't know anyone else who's working on the toxicity of usnic acid besides me.
    • Bitter orange, aristolochic acid and usnic acid are all used for weight loss.
    • Although several synthetic compounds inhibit this key pigment enzyme, the scientists found that usnic acid was over 10 times more effective than others tested.

Origin

Mid 19th century: usnic from medieval Latin usnea (from Arabic ushnah 'moss') + -ic.

Definition of usnic acid in US English:

usnic acid

nounˌəsnik ˈasid
Biochemistry
  • A yellow crystalline compound which is present in many lichens and is used as an antibiotic.

    〔生化〕松萝酸,地衣酸

    A tricyclic phenol; chemical formula: C₁₈H₁₆O₇

    Example sentencesExamples
    • Bitter orange, aristolochic acid and usnic acid are all used for weight loss.
    • Although several synthetic compounds inhibit this key pigment enzyme, the scientists found that usnic acid was over 10 times more effective than others tested.
    • I don't know anyone else who's working on the toxicity of usnic acid besides me.

Origin

Mid 19th century: usnic from medieval Latin usnea (from Arabic ushnah ‘moss’) + -ic.

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更新时间:2025/6/20 0:05:37