Source : Webster's Revised Unabridged Dictionary (1913)

Rheumatic \Rheu*mat"ic\, a. [Gr. ??? subject to a discharge or
   flux: cf. L. rheumaticus, F. rhumatique. See {Rheum},
   {Rheumatism}.]
   1. Derived from, or having the character of, rheum; rheumic.
      [Obs.]

   2. (Med.) Of or pertaining to rheumatism; as, rheumatic pains
      or affections; affected with rheumatism; as, a rheumatic
      old man; causing rheumatism; as, a rheumatic day.

            That rheumatic diseases do abound.    --Shak.

Rheumatic \Rheu*mat"ic\, n.
   One affected with rheumatism.

Source : WordNet®

rheumatic
     n : a person suffering with rheumatism

rheumatic
     adj : of or pertaining to arthritis; "my creaky old joints";
           "rheumy with age and grief" [syn: {arthritic}, {creaky},
            {rheumatoid}, {rheumy}]