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  1. Oxford Dictionary

    serum

    • IPA[ˈsɪərəm]

    英式

    • n.
      an amber-coloured, protein-rich liquid which separates out when blood coagulates；the blood serum of an animal used to provide immunity to a pathogen or toxin by inoculation or as a diagnostic agent

    • noun: serum, plural noun: sera

    • 釋義

    名詞

    • 1. an amber-coloured, protein-rich liquid which separates out when blood coagulates the researchers examined blood serum obtained from 471 men and women sera were stored at −20°C until tested
    • 2. the blood serum of an animal used to provide immunity to a pathogen or toxin by inoculation or as a diagnostic agent doctors treated the bites of carpet vipers with serum produced from local snakes