Source : Webster's Revised Unabridged Dictionary (1913)

Peal \Peal\, v. i. [imp. & p. p. {Pealed}; p. pr. & vb. n.
   {Pealing}.]
   1. To utter or give out loud sounds.

            There let the pealing organ blow.     --Milton.

   2. To resound; to echo.

            And the whole air pealed With the cheers of our men.
                                                  --Longfellow.