单词	rheumatoid factor
释义	rheumatoid factor noun : an autoantibody of high molecular weight that reacts against IgG immunoglobulins and is often present in rheumatoid arthritis Example Sentences Recent Examples on the Web Nearly everyone who is evaluated for psoriatic arthritis will have their blood tested for rheumatoid factor (RF), a protein produced by the immune system that attacks healthy joints. Sara Gaynes Lev, SELF, 30 July 2021 The doctor on call had the presence of mind to do a rheumatoid factor test, which tests for a type of protein that your immune system produces that can attack healthy tissue. Natasha Lavender, SELF, 15 Oct. 2020 Word History First Known Use 1949, in the meaning defined above Medical Definition rheumatoid factor noun : an autoantibody of high molecular weight that reacts against immunoglobulins of the class IgG and is often present in rheumatoid arthritis
随便看	probable probable cause probable error probable word probabler probables probablest probablier probabliest probably proband probands probangs probasidium probata probate probate bond probate court probate duty probate homestead probated probates probating probation probation officer

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