from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A watertight structure within which construction work is carried on under water.
- n. See camel.
- n. 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.
- n. A floating structure used to close off the entrance to a dock or canal lock.
- n. A horse-drawn vehicle, usually two-wheeled, used to carry artillery ammunition and coffins at military funerals.
- n. A large box used to hold ammunition.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An enclosure, from which water can be expelled, in order to give access to underwater areas for engineering works etc.
- n. The gate across the entrance to a dry dock.
- n. A floating tank that can be submerged, attached to an underwater object and then pumped out to lift the object by buoyancy; a camel.
- n. A two-wheeled, horse-drawn military vehicle used to carry ammunition (and a coffin at funerals).
- n. A large box to hold ammunition.
- n. A variant of coffer.
from the GNU version of the Collaborative International Dictionary of English
- n. A chest to hold ammunition.
- n. A four-wheeled carriage for conveying ammunition, consisting of two parts, a body and a limber. In light field batteries there is one caisson to each piece, having two ammunition boxes on the body, and one on the limber.
- n. A chest filled with explosive materials, to be laid in the way of an enemy and exploded on his approach.
- n. A water-tight box, of timber or iron within which work is carried on in building foundations or structures below the water level.
- n. A hollow floating box, usually of iron, which serves to close the entrances of docks and basins.
- n. A structure, usually with an air chamber, placed beneath a vessel to lift or float it.
- n. A sunk panel of ceilings or soffits.
from The Century Dictionary and Cyclopedia
- n. Milit.: A wooden chest into which several bombs are put, and sometimes gunpowder, to be exploded in the way of an enemy or under some work of which he has gained possession.
- n. An ammunition-wagon; also, an ammunition-chest.
- n. In architecture, a sunken panel in a coffered ceiling or in the soffit of Roman or Renaissance architecture, etc.; a coffer; a lacunar. See cut under coffer.
- n. In civil engineering: A vessel in the form of a boat, used as a flood-gate in docks.
- n. An apparatus on which vessels may be raised and floated; especially, a kind of floating dock, which may be sunk and floated under a vessel's keel, used for docking vessels at their moorings, without removing stores or masts. (See floating dock, under dock.)
- n. A water-tight box or casing used in founding and building structures in water too deep for a coffer-dam, such as piers of bridges, quays, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. large watertight chamber used for construction under water
- n. an ornamental sunken panel in a ceiling or dome
- n. a chest to hold ammunition
- n. a two-wheeled military vehicle carrying artillery ammunition
French, from Old French, large box, alteration (influenced by caisse, chest) of casson, from Italian cassone, augmentative of cassa, box, from Latin capsa.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French caisson. (Wiktionary)