Floating vs Caisson - What's the difference?

As a adjective floating

is that which floats or float.

is (float).

(engineering) an enclosure, from which water can be expelled, in order to give access to underwater areas for engineering works etc.

(-)

That which floats or float.

floating buoys

Not fixed in position, opinion etc.; free to move or drift.

The outcome of the forthcoming election is still unclear due to the large number of floating voters.

In China, the large floating population has tended to gravitate to cities.

You can drag the floating toolbars to any position on the screen.

(linguistics, of a tone) that is not attached to any consonant or vowel within its morpheme.

* floating point, floating-point * floating voter

(head)

(en noun)

(in the plural) Material that floats in a liquid.

* 1898 , Journal of Microscopy (page 256)

Plastic mud, brownish tinted, rich in floatings .

(wikipedia caisson)

(en noun)

(engineering) An enclosure, from which water can be expelled, in order to give access to underwater areas for engineering works etc.

* 2003 , (Bill Bryson), A Short History of Nearly Everything , BCA, p. 213:

Caissons were enclosed dry chambers built on river beds to facilitate the construction of bridge piers.

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 (and a coffin at funerals).

(military) A large box to hold ammunition.

(military) A chest filled with explosive materials, used like a mine.

(architecture) A coffer.

* caisson disease

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