canal lock

from The Collaborative International Dictionary of English v.0.48
Canal \Ca*nal"\, n. [F. canal, from L. canalis canal, channel;
   prob. from a root signifying "to cut"; cf. D. kanaal, fr. the
   French. Cf. {Channel}, {Kennel} gutter.]
   [1913 Webster]
   1. An artificial channel filled with water and designed for
      navigation, or for irrigating land, etc.
      [1913 Webster]

   2. (Anat.) A tube or duct; as, the alimentary canal; the
      semicircular canals of the ear.
      [1913 Webster]

   3. A long and relatively narrow arm of the sea, approximately
      uniform in width; -- used chiefly in proper names; as,
      Portland Canal; Lynn Canal. [Alaska]
      [Webster 1913 Suppl.]

   {Canal boat}, a boat for use on a canal; esp. one of peculiar
      shape, carrying freight, and drawn by horses walking on
      the towpath beside the canal.

   {Canal lock}. See {Lock}.
      [1913 Webster]
    

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