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.
      [1913 Webster]

   2. To resound; to echo.
      [1913 Webster]

            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]

Moby Thesaurus II by Grady Ward, 1.0:

72 Moby Thesaurus words for "pealing":
   booming, cannonading, change ringing, chime, chiming, chink, clang,
   clanging, clangor, clank, clanking, clink, deafening, ding,
   ding-a-ling, dingdong, dinging, dingle, donging, ear-piercing,
   ear-rending, ear-splitting, earthshaking, forte, fortissimo, full,
   fulminating, jangle, jingle, jingle-jangle, jingling, knell,
   knelling, loud, loud-sounding, loudish, peal, peal ringing,
   piercing, plangent, resounding, ring, ringing, roaring, rolling,
   rumbling, sonorous, sounding, stentoraphonic, stentorian,
   stentorious, thundering, thunderlike, thunderous, thundery, ting,
   ting-a-ling, tingle, tingling, tink, tinkle, tinkling, tinnitus,
   tintinnabular, tintinnabulary, tintinnabulous, toll, tolling,
   tonitruant, tonitruous, volleying, window-rattling