Word.ws English Dictionary

rheumatoid factor

rheumatoid factor noun: an autoantibody directed against the Fc fragment of immunoglobulin G (IgG), often elevated in certain conditions including rheumatoid arthritis and Sjögren's syndrome.

Noun

rheumatoid factor (plural rheumatoid factors)

  1. An autoantibody directed against the Fc fragment of immunoglobulin G (IgG), often elevated in certain conditions including rheumatoid arthritis and Sjögren's syndrome.
    Synonyms:
    RF

Synonyms of rheumatoid factor

Forms of rheumatoid factor

pluralrheumatoid factors

Questions about rheumatoid factor

What does rheumatoid factor mean?
Rheumatoid factor means an autoantibody directed against the Fc fragment of immunoglobulin G (IgG), often elevated in certain conditions including rheumatoid arthritis and Sjögren's syndrome.
What part of speech is rheumatoid factor?
Rheumatoid factor is a noun.
What is the plural of rheumatoid factor?
The plural of rheumatoid factor is rheumatoid factors.

Words near rheumatoid factor in the dictionary

  1. rheumatogenic
  2. rheumatogenicity
  3. rheumatoid
  4. rheumatoid arthritides
  5. rheumatoid arthritis
  6. rheumatoid factor
  7. rheumatoid factors
  8. rheumatoid pneumoconiosis
  9. rheumatoidal
  10. rheumatoidally
  11. rheumatoids

Source and license

Adapted from Wiktionary: rheumatoid factor (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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