[1] : The Collaborative International Dictionary of English v.0.48

cannon \can"non\, n.; pl. cannons, collectively cannon. f.
   cannon, fr. l. canna reed, pipe, tube. see cane.
   1. a great gun; a piece of ordnance or artillery; a firearm
      for discharging heavy shot with great force.
      1913 webster

   note: cannons are made of various materials, as iron, brass,
         bronze, and steel, and of various sizes and shapes with
         respect to the special service for which they are
         intended, as intended, as siege, seacoast, naval,
         field, or mountain, guns. they always aproach more or
         less nearly to a cylindrical from, being usually
         thicker toward the breech than at the muzzle. formerly
         they were cast hollow, afterwards they were cast,
         solid, and bored out. the cannon now most in use for
         the armament of war vessels and for seacoast defense
         consists of a forged steel tube reinforced with massive
         steel rings shrunk upon it. howitzers and mortars are
         sometimes called cannon. see gun.
         1913 webster

   2. mech. a hollow cylindrical piece carried by a revolving
      shaft, on which it may, however, revolve independently.
      1913 webster

   3. printing. a kind of type. see canon.
      1913 webster

   cannon ball, strictly, a round solid missile of stone or
      iron made to be fired from a cannon, but now often applied
      to a missile of any shape, whether solid or hollow, made
      for cannon. elongated and cylindrical missiles are
      sometimes called bolts; hollow ones charged with
      explosives are properly called shells.

   cannon bullet, a cannon ball. obs.

   cannon cracker, a fire cracker of large size.

   cannon lock, a device for firing a cannon by a percussion
      primer.

   cannon metal. see gun metal.

   cannon pinion, the pinion on the minute hand arbor of a
      watch or clock, which drives the hand but permits it to be
      moved in setting.

   cannon proof, impenetrable by cannon balls.

   cannon shot.
      a a cannon ball.
      b the range of a cannon.
          1913 webster
see also:
cannons cannon cane gun canon cannon ball 
cannon bullet cannon cracker cannon lock cannon metal gun metal 
cannon pinion cannon proof cannon shot 

[2] : WordNet (r) 2.0

cannon ball
     n : a solid projectile that in former times was fired from a
         cannon syn: cannonball, round shot
see also:
cannonball round shot 

[3] : U.S. Gazetteer (1990)

cannon ball, nd cdp, fips 12020
  location: 46.31247 n, 100.63206 w
  population 1990: 702 180 housing units
  area: 224.8 sq km land, 21.7 sq km water
  zip codes: 58528

[4] : U.S. Gazetteer Places (2000)

cannon ball, nd -- u.s. census designated place in north dakota
   population 2000:    864
   housing units 2000: 208
   land area 2000:     88.423610 sq. miles 229.016088 sq. km
   water area 2000:    8.390174 sq. miles 21.730449 sq. km
   total area 2000:    96.813784 sq. miles 250.746537 sq. km
   fips code:            12020
   located within:       north dakota nd, fips 38
   location:             46.249361 n, 100.638672 w
   zip codes 1990:     58528
   note: some zip codes may be omitted esp. for suburbs.
   headwords:
    cannon ball, nd
    cannon ball

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