- a container in which things are boiled or heated
- a tank or device in which water is turned to steam as for heating a building or for power, as in a steam engine
- a tank for heating water and storing it
- An enclosed vessel in which water is heated and circulated, either as hot water or as steam, for heating or power.
- A container, such as a kettle, for boiling liquids.
- A storage tank for hot water.
- An apparatus that generates heat (usually by burning fuel) and uses it to heat circulating water (sometimes another liquid) in a closed system that is then used for space heating, swimming pool heating, or domestic hot water or industrial processes.
- Less commonly, a hot water heater.
- (approximate definition) A fuel burning apparatus in which water is boiled to produce steam for space heating, power generation, or industrial processes.(more precisely) An apparatus in which a heat source other than a hot liquid or steam (most commonly burning fuel, exhaust gas from an internal combustion engine or gas turbine, waste heat from a process, solar energy or electricity) is used to boil water (rarely another liquid), under pressure to provide steam (other gas) for use as a heat source in calorifiers, heat exchangers or heat emitters, or for use directly for humidification, in an industrial process, or to power steam turbines.
- A kitchen vessel for steaming or boiling food.
- (UK, informal) A tough old chicken only suitable for cooking by boiling.
(plural not attested)
- (rare, informal) Boilerplate.
- libero, reboil
Shortening of boilerplate