A whirlpool bath.

An invigorating and cleansing technique whereby the body is plunged into pools of mineral water of different temperatures.

The ancient Roman bath system of various hot, warm and cold baths, each with different ingredients.

A communal pool of mineral enriched thermal water with underwater seating.

A hot whirlpool with benches - usually accommodating more than one person.

a bathroom constructed to resemble the public baths of ancient Rome, usually there is a large sunken tub and a use of marble or marble-like tiles as the principle covering of the floors, vanities, etc.

Ancient Romans had numerous baths that were used alternately; hot, warm and cold. The varying temperatures aided in stimulating the circulatory system.

The modern day equivalent of a Roman Bath, usually comprises of a Jacuzzi style bath, a whirlpool and a group of other pools maintained at different temperatures.

Traditionally, a series of hot, warm, and cold pools, but today used to refer to a hot whirlpool or Jacuzzi with benches.

Traditionally a series of hot warm and cold pools but the term is now used with reference to a whirlpool or Jacuzzi with benches.