(n) a large dock from which water can be pumped out; used for building ships or for repairing a ship below its waterline(v) maneuver (a ship) into a drydock

A narrow basin or vessel used for the construction, maintenance, and repair of ships, boats, and other watercraft that can be flooded to allow a load to be floated in, then drained to allow that load [..]

  A dock from which the water may be removed for the purpose of inspecting or working on a ship's bottom; it may be either floating or built into a shore.  

special dock used to facilitate repairs to the hull of a ship. The ship is floated into the drydock, which is then sealed off from the water. The water inside is pumped out, and the ship is left, high [..]

a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform. Drydocks are used for the construction, maintenance, a [..]

An artificial basin fitted with a gate or caisson, into which vessels can be floated and the water pumped out to expose the vessel's bottom. Also called graving dock. (5)