Dictionary

rheumatoid factor

noun

Definition of RHEUMATOID FACTOR

:  an autoantibody of high molecular weight that reacts against IgG immunoglobulins and is often present in rheumatoid arthritis
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First Known Use of RHEUMATOID FACTOR

1949
Medical Dictionary

rheumatoid factor

noun

Medical Definition of RHEUMATOID FACTOR

:  an autoantibody of high molecular weight that reacts against immunoglobulins of the class IgG and is often present in rheumatoid arthritis

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