单词 | pontoon |
释义 | pontoon pontoon1 /pon toohn"/, n. 1. Mil. 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. Naut. a float for raising a sunken or deeply laden vessel in the water; a camel or caisson. 4. a seaplane float. Also, ponton /pon"tn/. [1585-95; < F ponton < L ponton- (s. of ponto) flat-bottomed boat, punt] pontoon2 /pon toohn"/, n. Brit. the card game twenty-one. [1915-20; alter. of F vingt-et-un twenty-one] |
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