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单词 urushiol
释义

Definition of urushiol in English:

urushiol

noun ʊˈruːʃɪɒl(y)o͝oˈro͞oSHēˌôl
mass nounBiochemistry
  • An oily liquid which is the main constituent of Japanese lacquer and is responsible for the irritant properties of poison ivy and other plants. It consists of a mixture of catechol derivatives.

    Example sentencesExamples
    • If you're lucky enough to learn of your child's contact with poison ivy within five to ten minutes, then there's a chance that you can wash off the urushiol oil, which causes the reaction.
    • These products often lay a polymer film on the skin that prevents urushiol from permeating to the dermal layer and, in so doing, function as a barrier.
    • Unfortunately, the study also found that carbon dioxide-enhanced poison ivy boasts a stronger strain of urushiol, which may prove even more poisonous to humans.
    • All parts of the poison ivy plant produce the oily irritating agent, urushiol.
    • Poison ivy, poison oak, and poison sumac all contain the same allergic irritant: urushiol.
    • For people who are sensitive to urushiol, the toxic compound found in the plants, the slightest contact can result in a painful itching rash.

Origin

Early 20th century: from Japanese urushi 'Japanese lacquer' + -ol.

 
 

Definition of urushiol in US English:

urushiol

noun(y)o͝oˈro͞oSHēˌôl
Biochemistry
  • An oily liquid which is the main constituent of Japanese lacquer and is responsible for the irritant properties of poison ivy and other plants. It consists of a mixture of catechol derivatives.

    Example sentencesExamples
    • Unfortunately, the study also found that carbon dioxide-enhanced poison ivy boasts a stronger strain of urushiol, which may prove even more poisonous to humans.
    • If you're lucky enough to learn of your child's contact with poison ivy within five to ten minutes, then there's a chance that you can wash off the urushiol oil, which causes the reaction.
    • These products often lay a polymer film on the skin that prevents urushiol from permeating to the dermal layer and, in so doing, function as a barrier.
    • Poison ivy, poison oak, and poison sumac all contain the same allergic irritant: urushiol.
    • For people who are sensitive to urushiol, the toxic compound found in the plants, the slightest contact can result in a painful itching rash.
    • All parts of the poison ivy plant produce the oily irritating agent, urushiol.

Origin

Early 20th century: from Japanese urushi ‘Japanese lacquer’ + -ol.

 
 
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更新时间:2024/12/23 8:08:41