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Meaning of rheumatoid factor

rheu'matoid fac"tor

Pronunciation: [key]
— Biochem. Biochem.
  1. an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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