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serum noun

  /ˈsiɹəm/ , /ˈsiːɹəm/ , /ˈsɪəɹəm/ , /ˈsɪɹəm/
  • Blood serum used as a blood product, in the practice of medicine: blood serum from the tissues of immunized animals (human or nonhuman), containing antibodies and used to transfer immunity to another individual (human or nonhuman).
siero
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