Definition of: drydock

(drī′dok′) noun
A structure, either floating or stationary, into which a ship is floated for repairs or cleaning. Gates and pumps operate to remove the enclosed water for convenience in working.
—v.t. & v.i. To put in or go into dry-dock.
FLOATING DRYDOCK
a. Water line at the time ship is floated into dock.
b. Water line after water is pumped out of dock.
c. Block supports for ship.
d. Shoring for side support.
e. Watertight compartments.