a dock which can be drained of water to allow the inspection and repair of a ship’s hull:the company invested £40,000 in modernizing their dry dock [mass noun]:the vessel will go into dry dock until late February
verb
(dry-dock) [with object] place (a ship) in a dry dock: (as noun dry-docking)the vessel underwent its first dry-docking in six years
dry dock in other Oxford dictionaries
Definition of dry dock in the US English dictionary