Definitions for: Plunger

[n] mechanical device that has a plunging or thrusting motion
[n] hand tool consisting of a stick with a rubber suction cup at one end; used to clean clogged drains
[n] someone who dives (into water)
[n] someone who risks losses for the possibility of considerable gains

Webster (1913) Definition: 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

Synonyms: diver, piston, plumber's helper, speculator

See Also: adventurer, gambler, hand tool, hedger, mechanical device, operator, piston ring, piston rod, reciprocating engine, scalper, swimmer, venture capitalist, venturer

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