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plunger |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Plunger \Plun"ger\, n. 1. One who or that which plunges; a diver. 2. A long solid cylinder, used instead of a piston or bucket, as a forcer in pumps. 3. One who bets heavily and recklessly on a race; a reckless speculator. [Cant] 4. (Pottery) A boiler in which clay is beaten by a wheel to a creamy consistence. --Knight. 5. (Gun.) The firing pin of a breechloader. {Plunger bucket}, a piston, without a valve, in a pump. {Plunger pole}, the pump rod of a pumping engine. {Plunger pump}, a pump, as for water, having a plunger, instead of a piston, to act upon the water. It may be single-acting or double-acting From WordNet r 1.6 [wn]: plunger n 1: someone who risks losses for the possibility of considerable gains [syn: {speculator}] 2: someone who gambles extravagantly 3: a part of a machine that has a plunging or thrusting motion [syn: {piston}]
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