Source : Webster's Revised Unabridged Dictionary (1913)

Cannonade \Can`non*ade"\, n. [F. Canonnade; cf. It. cannanata.]
   1. The act of discharging cannon and throwing ball, shell,
      etc., for the purpose of destroying an army, or battering
      a town, ship, or fort; -- usually, an attack of some
      continuance.

            A furious cannonade was kept up from the whole
            circle of batteries on the devoted towm. --Prescott.

   2. Fig.; A loud noise like a cannonade; a booming.

            Blue Walden rolls its cannonade.      --Ewerson.

Cannonade \Can`non*ade"\, v. t. [imp. & p. p. {Cannonade}; p.
   pr. & vb. n. {Cannonading}.]
   To attack with heavy artillery; to batter with cannon shot.

Cannonade \Can`non*ade"\, v. t. [imp. & p. p. {Cannonade}; p.
   pr. & vb. n. {Cannonading}.]
   To attack with heavy artillery; to batter with cannon shot.

Cannonade \Can`non*ade"\, v. i.
   To discharge cannon; as, the army cannonaded all day.

Source : WordNet®

cannonade
     n : intense and continuous artillery fire [syn: {drumfire}]
     v : attack with canons or artillery