資料來源 : Webster's Revised Unabridged Dictionary (1913)

Dock \Dock\, n. [Akin to D. dok; of uncertain origin; cf. LL.
   doga ditch, L. doga ditch, L. doga sort of vessel, Gr. ?
   receptacle, fr. ? to receive.]
   1. An artificial basin or an inclosure in connection with a
      harbor or river, -- used for the reception of vessels, and
      provided with gates for keeping in or shutting out the
      tide.

   2. The slip or water way extending between two piers or
      projecting wharves, for the reception of ships; --
      sometimes including the piers themselves; as, to be down
      on the dock.

   3. The place in court where a criminal or accused person
      stands.

   {Balance dock}, a kind of {floating dock} which is kept level
      by pumping water out of, or letting it into, the
      compartments of side chambers.

   {Dry dock}, a dock from which the water may be shut or pumped
      out, especially, one in the form of a chamber having walls
      and floor, often of masonry and communicating with deep
      water, but having appliances for excluding it; -- used in
      constructing or repairing ships. The name includes
      structures used for the examination, repairing, or
      building of vessels, as graving docks, floating docks,
      hydraulic docks, etc.

   {Floating dock}, a dock which is made to become buoyant, and,
      by floating, to lift a vessel out of water.

   {Graving dock}, a dock for holding a ship for graving or
      cleaning the bottom, etc.

   {Hydraulic dock}, a dock in which a vessel is raised clear of
      the water by hydraulic presses.

   {Naval dock}, a dock connected with which are naval stores,
      materials, and all conveniences for the construction and
      repair of ships.

   {Sectional dock}, a form of {floating dock} made in separate
      sections or caissons.

   {Slip dock}, a dock having a sloping floor that extends from
      deep water to above high-water mark, and upon which is a
      railway on which runs a cradle carrying the ship.

   {Wet dock}, a dock where the water is shut in, and kept at a
      given level, to facilitate the loading and unloading of
      ships; -- also sometimes used as a place of safety; a
      basin.

Graving \Grav"ing\, n. [From Grave to clean.]
   The act of cleaning a ship's bottom.

   {Graving dock}. (Naut.) See under Dock.

資料來源 : WordNet®

graving dock
     n : a large dock from which water can be pumped out; used for
         building ships or for repairing a ship below its
         waterline [syn: {dry dock}, {drydock}]