(pol-ē-ar-thrīt'ĭs )

[poly- + arthritis]

Inflammation of more than one joint, seen in rheumatoid arthritis, juvenile rheumatoid arthritis, and psoriatic arthritis. It usually involves more than four joints.

polyarthritic,

(pol‵ē-ar-thrit'ik )

acute p. rheumatica Acute rheumatic fever.

SEE: rheumatic fever.