hypocaust
nounEtymology From Latin hypocaustum, from Ancient Greek ὑπόκαυστον (hupókauston), from Ancient Greek ὑπό (hupó, “underneath”) + καυστόν (kaustón, “burnt offering”).
1
An underfloor space or flue through which heat from a furnace passes to heat the floor of a room or a bath.
2
An underfloor heating system, even without such an underfloor space or flue, as adapted for modern housing.
- Synonyms
- hippocaust, floor heating, underfloor heating