Source : Webster's Revised Unabridged Dictionary (1913)

Tympany \Tym"pa*ny\, n. [Gr. ?, fr. ? a kettledrum. See
   {Tympanites}.]
   1. (Med.) A flatulent distention of the belly; tympanites.
      --Fuller.

   2. Hence, inflation; conceit; bombast; turgidness. ``Thine 's
      a tympany of sense.'' --Dryden.

            A plethoric a tautologic tympany of sentence. --De
                                                  Quincey.