rheumatoid factor

rheumatoid factor

noun Biochemistry.
an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.

Origin:
1945–50

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

rheumatoid factor n.
Abbr. RF
Any of the immunoglobulins found in the serum of individuals with rheumatoid arthritis that enhance the agglutination of suspended particles that are coated with pooled human gamma globulin and that are used to diagnose the disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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