Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A space under the floor of an ancient Roman building where heat from a furnace was accumulated to heat a room or a bath.

from The Century Dictionary.

  • noun In architecture, an arched fire-chamber, from which heat is distributed through earthenware pipes to the rooms above it. The term is also sometimes applied to a fireplace, furnace, or oven.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An underfloor space or flue through which heat from a furnace passes to heat the floor of a room or a bath.
  • noun An underfloor heating system, even without such an underfloor space or flue, as adapted to the modern housing, east and west.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin hypocaustum, from Greek hupokauston, from hupokaiein, to light a fire beneath : hupo-, hypo- + kaiein, to burn.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Latin hypocaustum, from Ancient Greek ὑπό (hypo, "underneath") + καίειν (kaiein, "to light a fire, burn")

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Examples

  • The stube, or stove, of a German inn, derived its name from the great hypocaust, which is always strongly heated to secure the warmth of the apartment in which it is placed.

    Anne of Geierstein 2008

  • A dozen burials found in the surrounding hypocaust in the nineteenth century would be consistent with a graveyard around a church*.

    Archive 2010-02-01 Carla 2010

  • A dozen burials found in the surrounding hypocaust in the nineteenth century would be consistent with a graveyard around a church*.

    Wroxeter: the sixth-century rebuilding Carla 2010

  • A dozen burials found in the surrounding hypocaust in the nineteenth century would be consistent with a graveyard around a church*.

    The battle of Arfderydd or Arthuret Carla 2010

  • The hypocaust was rebuilt, and part of the suspended floor was found still intact when excavated in 1969.

    Chester in the seventh century: surviving infrastructure Carla 2009

  • The hypocaust was rebuilt, and part of the suspended floor was found still intact when excavated in 1969.

    Archive 2009-06-01 Carla 2009

  • “It was Ahenobarbus Pontifex Maximus who refurbished the Atrium Vestae sixty years ago,” the housekeeper explained, “and then Caesar Pontifex Maximus installed hypocaust heating in all the living areas as well as the record rooms.”

    Antony and Cleopatra Colleen McCullough 2007

  • The stoking had been done, but it was not yet time to rake the glowing coals into the hypocaust, there to heat the upper floors.

    Antony and Cleopatra Colleen McCullough 2007

  • Our basement was given over to the storage of wills, but Caesar Pontifex Maximus worked out how to take enough of it to make the best hypocaust in Rome.

    Antony and Cleopatra Colleen McCullough 2007

  • Our basement was given over to the storage of wills, but Caesar Pontifex Maximus worked out how to take enough of it to make the best hypocaust in Rome.

    Antony and Cleopatra Colleen McCullough 2007

Comments

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  • "'I'm wondering if I can vent some of the heat from the kiln, and run it under the floor of the cabin. You know what a Roman hypocaust is?'

    'I do.' He turned to eye the foundation of his domicile.... The notion of central heating in a crude mountain cabin made him want to laugh."

    —Diana Gabaldon, A Breath of Snow and Ashes (New York: Bantam Dell, 2005), 197

    January 30, 2010

  • Roman communal toilet seat warmer?

    January 30, 2010