- 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. Also called cofferdam .
- 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.