1520s, from whirl (v.) + pool (n.1). Old English had hwyrfepol and wirfelmere.

A method of collecting hot break material in the center of the kettle by stirring the wort until a vortex is formed. A brewhouse vessel designed to separate hot break trub particles from boiled wort. [..]

llquid flowing quickly in a circular motion, pulling material downward into its center.

Whirlpool baths can supplement spa services by providing stress-relieving, therapeutic hydromassage. Regular uses of whirlpools are often prescribed by doctors to patients experiencing chronic pain or [..]

To dream of a whirlpool, denotes that great danger is imminent in your business, and, unless you are extremely careful, your reputation will be seriously blackened by some disgraceful intrigue.   

A bath with jets that move warm water into a swirling motion, jetted bathtub.

A bathing fixture equipped with jets around the bottom to circulate warm water under the pressure of a pump.

A funnel-shaped device where the ball enters at the top and spins to the bottom.

(n) a powerful circular current of water (usually the result of conflicting tides)(v) flow in a circular current, of liquids

An eddy or vortex of water. Any body of water having a more or less circular motion caused by it flowing in an irregular channel, or by conjunction of opposing currents.

Current that has a rotatory motion over a compara­tively small area. Is troublesome in that it may turn ship's head against maximum rudder at maximum speed. Its suctional effect is largely mythic [..]

Round cylindrical flat bottom tank into which hot Tank wort from the brew kettle is pumped at high velocity and tangentially to its straight wall. This high speed stream causes the wort in the tank to [..]

Water in rapid rotary motion. See also EDDY.

jacuzzi, hot tub