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Noun: serum (serums,sera)  seer-um
  1. An amber, watery fluid, rich in proteins, that separates out when blood coagulates
    - blood serum
     
  2. A watery fluid from animal tissue, esp. from serous membranes

Derived forms: serums, sera

Type of: bodily fluid, body fluid, humor [US], humour [Brit, Cdn], liquid body substance

Part of: blood

Encyclopedia: Serum, Gary

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