right|thumb|230px|Caldarium from the Roman baths at Bath, Somerset|Bath, England. The floor has been removed to reveal the empty space where the hot air flowed through to heat the floor.
right|thumb|230px|Caldarium from the Roman baths at Bath, Somerset|Bath, England. The floor has been removed to reveal the empty space where the hot air flowed through to heat the floor.
A (also called a calidarium, cella caldaria or cella coctilium) was a room with a hot plunge bath, used in a Roman bath complex. The boiler supplying hot water to a baths complex was also called .
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).