An old artillery caisson on display at a national park.
- a chest for holding ammunition
- a two-wheeled wagon for transporting ammunition
- a watertight enclosure inside which underwater construction work can be done
- a watertight box for raising sunken ships: after the box is sunk and attached, the water is forced out of it so that it floats
- a hollow, boat-shaped box, used as a floodgate at a dock or basin
Origin of caissonFrench ; from Italian cassone ; from cassa, a chest ; from Classical Latin capsa, a box, case
- A watertight structure within which construction work is carried on under water.
- See camel.
- A large box open at the top and one side, designed to fit against the side of a ship and used to repair damaged hulls under water.
- A floating structure used to close off the entrance to a dock or canal lock.
- a. A horse-drawn vehicle, usually two-wheeled, used to carry artillery ammunition and coffins at military funerals.b. A large box used to hold ammunition.
Origin of caissonFrench, from Old French, large box, alteration (influenced by caisse, chest) of casson, from Italian cassone, augmentative of cassa, box, from Latin capsa.
escorting the coffin of President Ronald Reagan to the US Capitol Rotunda in 2004
- (engineering) An enclosure, from which water can be expelled, in order to give access to underwater areas for engineering works etc.
- The gate across the entrance to a dry dock.
- (nautical) A floating tank that can be submerged, attached to an underwater object and then pumped out to lift the object by buoyancy; a camel.
- (military) A two-wheeled, horse-drawn military vehicle used to carry ammunition (a coffin at funerals).
- (military) A large box to hold ammunition.
- (architecture) A variant of coffer.