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infectious

adjective
🔊/ɪnˈfekʃəs/
🔊/ɪnˈfekʃəs/
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  1. an infectious disease can be passed easily from one person to another, especially through air or water传染性的，感染的（尤指通过呼吸）
    • Flu is highly infectious.流感的传染性很高。🔊🔊
    • (figurative) infectious laughter富有感染力的笑声
    Topics Illnessc1
    Oxford Collocations Dictionaryverbs
    • be
    adverb
    • highly
    • very
    • potentially
    • …
    See full entry
  2. [not usually before noun] if a person or an animal is infectious, they have a disease that can be spread to others患有传染病；有传染力
    • I'm still infectious.我还处在传染期。🔊🔊
    Topics Illnessc1
    Oxford Collocations Dictionaryverbs
    • be
    adverb
    • highly
    • very
    • potentially
    • …
    See full entry
    3. compare contagious
    Word Originmid 16th cent.: from infection + -ous.