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Definition of pontoon - 7 dictionary results

pon⋅toon

1[pon-toon]
–noun
1. Military. a boat or some other floating structure used as one of the supports for a temporary bridge over a river.
2. a float for a derrick, landing stage, etc.
3. Nautical. a float for raising a sunken or deeply laden vessel in the water; a camel or caisson.
4. a seaplane float.
Also, pon⋅ton [pon-tn] .


Origin:
1585–95; < F ponton < L pontōn- (s. of pontō) flat-bottomed boat, punt

pon⋅toon

2[pon-toon]
–noun British.
the card game twenty-one.

Origin:
1915–20; alter. of F vingt-et-un twenty-one

cais⋅son

[key-suhn, -son]
–noun
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.
a. 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.
b. 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).

Origin:
1695–1705; < F, MF < OPr, equiv. to caissa box (see case 2 ) + -on aug. suffix


caissoned, adjective

cam⋅el

[kam-uhl]
–noun
1. either of two large, humped, ruminant quadrupeds of the genus Camelus, of the Old World. Compare Bactrian camel, dromedary.
2. a color ranging from yellowish tan to yellowish brown.
3. Also called camel spin. Skating. a spin done in an arabesque position.
4. Nautical.
a. Also called pontoon. a float for lifting a deeply laden vessel sufficiently to allow it to cross an area of shallow water.
b. a float serving as a fender between a vessel and a pier or the like.
c. caisson (def. 3a).

Origin:
bef. 950; ME, OE < L camēlus < Gk kámēlos < Sem; cf. Heb gāmāl


cam⋅el⋅like, adjective
pon·toon   (pŏn-tōōn')   
n.  
  1. A floating structure, such as a flatbottom boat, that is used to support a bridge.
  2. A floating structure serving as a dock.
  3. A float on a seaplane.

[French ponton, from Old French, from Latin pontō, pontōn-, floating bridge, from pōns, pont-, bridge; see pent- in Indo-European roots.]

Pontoon

Pon*toon"\, n. [F. ponton (cf. It. pontone), from L. ponto, -onis, fr. pons, pontis, a bridge, perhaps originally, a way, path: cf. Gr. ? path, Skr. path, pathi, panthan. Cf. Punt a boat.]

1. (Mil.) A wooden flat-bottomed boat, a metallic cylinder, or a frame covered with canvas, India rubber, etc., forming a portable float, used in building bridges quickly for the passage of troops.

2. (Naut.) A low, flat vessel, resembling a barge, furnished with cranes, capstans, and other machinery, used in careening ships, raising weights, drawing piles, etc., chiefly in the Mediterranean; a lighter.

Pontoon bridge, a bridge formed with pontoons.

Pontoon train, the carriages of the pontoons, and the materials they carry for making a pontoon bridge.

Note: The French spelling ponton often appears in scientific works, but pontoon is more common form.
Language Translation for : pontoon
Spanish: pontón,
German: der Ponton,
Japanese: 浮橋

pontoon 
1676, from Fr. pontoon, from M.Fr. ponton, from L. pontonem (nom. ponto) "flat-bottomed boat," from pons "bridge." Pontoon bridge is first recorded 1778.
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