hypocaust Meaning, Definition & Usage

Hyp"o*caust noun
Etymology
L. hypocaustum, Gr. under + to burn: cf. F. hypocauste.
Definitions
  1. (Anc. Arch.) A furnace, esp. one connected with a series of small chambers and flues of tiles or other masonry through which the heat of a fire was distributed to rooms above. This contrivance, first used in bath, was afterwards adopted in private houses.

Webster 1913