Dictionary.com
definitions

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.

RELATED CONTENT

Offbeat Literary Genres To Get Lost InRead more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE
Woof, Blaf, Or Voff? How Animals Speak Across The WorldRead more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE

Nearby words

rheumatid, rheumatism, rheumatism-root, rheumatoid, rheumatoid arthritis, rheumatoid factor, rheumatoid nodule, rheumatoid spondylitis, rheumatologist, rheumatology, rheumy

Origin of rheumatoid factor

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for rheumatoid factor

rheumatoid factor

n.

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.