LekhoriLekhoriAn enclosure from which water can be expelled, in order to give access to underwater areas for engineering works etc.
During the construction of the viaduct, the sinking of the caissons in the river bed caused much difficulty to the engineer and contractors, as a bed of running sand was encountered; in consequence, the expenditure for these foundations proved almost prohibitive.
The gate across the entrance to a dry dock.
A floating tank that can be submerged, attached to an underwater object and then pumped out to lift the object by buoyancy; a camel.
Borrowed from French caisson. Doublet of cassone and cajón.
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