The Collaborative International Dictionary of English v.0.48:

Peal \Peal\, v. i. [imp. & p. p. Pealed (p[=e]ld); p. pr. &
   vb. n. Pealing.]
   1. To utter or give out loud sounds.
      [1913 Webster]

            There let the pealing organ blow.     --Milton.
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   2. To resound; to echo.
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            And the whole air pealed
            With the cheers of our men.           --Longfellow.
      [1913 Webster]

WordNet (r) 3.0 (2006):

pealing
    n 1: a deep prolonged sound (as of thunder or large bells) [syn:
         peal, pealing, roll, rolling]