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.

Similar
RF
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounrheumatoid factor (plural rheumatoid factors)

plural rheumatoid factors

  1. immunologyAn 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 & antonyms

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

Similar
RF
Cite this entry
APA

rheumatoid factor. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rheumatoid%20factor

MLA

“rheumatoid factor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rheumatoid%20factor. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “rheumatoid factor,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rheumatoid%20factor.

Source: rheumatoid factor on Wiktionary, CC BY-SA 4.0.