piston, plunger
(noun) mechanical device that has a plunging or thrusting motion
plunger, plumber's helper
(noun) hand tool consisting of a stick with a rubber suction cup at one end; used to clean clogged drains
diver, plunger
(noun) someone who dives (into water)
speculator, plunger
(noun) someone who risks losses for the possibility of considerable gains
Source: WordNet® 3.1
plunger (plural plungers)
A device that is used to remove blockages from the drain of a basin or tub, by suction.
The internal piece of a syringe that pushes out or pulls in any contents.
The sliding activator of an exploder, an electrical generator used to trigger electrical detonators such as blasting caps.
The part of a cafetière that is pushed down to remove grounds from coffee.
One who plunges; a diver.
A horse that plunges, or throws itself suddenly forward.
(military) A cavalryman.
A device similar to a piston but without a mechanism; a long solid cylinder used, instead of a piston or bucket, as a forcer in pumps.
The moving portion of a solenoid.
(pinball) The spring-loaded assembly that propels the ball onto the table.
(dated, slang) A reckless gambler.
(pottery) A boiler in which clay is beaten by a wheel to a creamy consistency.
(firearms) The firing pin of a breechloader.
• (device): plumber's helper (colloquial), plumber's friend (colloquial)
Source: Wiktionary
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)
Definition: A boiler in which clay is beaten by a wheel to a creamy consistence. Knight.
5. (Gun.)
Definition: 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
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
According to Guinness World Records, the largest coffee press is 230 cm (7 ft 6 in) in height and 72 cm (2 ft 4 in) in diameter and was created by Salzillo Tea and Coffee (Spain) in Murcia, Spain, in February 2007. The cafetière consists of a stainless steel container, a filtering piston, and a superior lid.
