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Definitions for Caisson

[1] a structure used in underwater work, consisting of an airtight chamber, open at the bottom and containing air under sufficient pressure to exclude the water.
[2] a boatlike structure used as a gate for a dock or the like.
[3] Nautical . Also called camel, pontoon. a float for raising a sunken vessel, sunk beside the vessel, made fast to it, and then pumped out to make it buoyant. a watertight structure built against a damaged area of a hull to render the hull watertight; cofferdam.
[4] a two-wheeled wagon, used for carrying artillery ammunition.
[5] an ammunition chest.
[6] a wooden chest containing bombs or explosives, used formerly as a mine.
[7] Architecture . coffer(def 4) .
[8] a watertight chamber open at the bottom and containing air under pressure, used to carry out construction work under water
[9] a similar unpressurized chamber
[10] a watertight float filled with air, used to raise sunken ships See also camel (def. 2)
[11] a watertight structure placed across the entrance of a basin, dry dock, etc, to exclude water from it
[12] a box containing explosives, formerly used as a mine an ammunition chest a two-wheeled vehicle containing an ammunition chest
[13] another name for coffer (def. 3)

Words related to Caisson

case, chamber, chest, float, box

Words nearby Caisson

cairn terrier, cairngorm, cairngorm mountains, cairns, cairo, caisson, caisson disease, caithness, caitiff, caitlin, caius

Origin of Caisson

1695–1705; < French, Middle French < Old Provençal, equivalent to caissa box (see case2) + -on augmentative suffix

Other words from Caisson

cais·soned , adjective

Word origin for Caisson

C18: from French, assimilated to caisse case ²

Synonyms for Caisson

box, case, chamber, chest, float