/ Dictionary / Index R rheumatoid arthritis: Meaning and Definition of Find definitions for: rheu'matoid arthri'tis Pronunciation: [key] — Pathol. Pathol. a chronic autoimmune disease characterized by inflammation of the joints, frequently accompanied by marked deformities, and ordinarily associated with manifestations of a general, or systemic, affliction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rheumatoid rheumatoid factor Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language