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| pon·toon [ pon tn ] (plural pon·toons) |
noun |
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| Definition: |
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1. floating support for bridge: a floating structure used as a support for a bridge across a river, especially one put in place temporarily
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2. float on aircraft: a float on an aircraft that provides buoyancy or stability when the aircraft is on water
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3. floating dock: a floating structure used as a dock
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| [Late 17th century. Via French< Latin ponton- "floating bridge" < pont- "bridge"] |
