Definition of steam boiler in English:
A container such as that in a steam engine in which water is boiled to generate steam.
- He used an old steam boiler, filled with rocks, which was pulled by a horse or bullock team.
- The collection languished for years in Harrison's steam boiler factory, and Catlin again lobbied the U.S. government to purchase his Indian collection to no avail.
- Byworth, based in Parkwood Street, is the only remaining independent manufacturer of hot water and steam boilers in the UK.