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Meaning of seropositive

se•ro•pos•i•tive

Pronunciation: (sēr"ō-poz'i-tiv), [key]
— adj. Med.
  1. showing a significant level of serum antibodies, or other immunologic marker in the serum, indicating previous exposure to the infectious agent being tested.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.