Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A space under the floor of an ancient Roman building where heat from a furnace was accumulated to heat a room or a bath.
Century Dictionary and Cyclopedia
- n. 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.
Wiktionary
- n. An underfloor space or flue through which heat from a furnace passes to heat the floor of a room or a bath.
- n. An underfloor heating system, even without such an underfloor space or flue, as adapted to the modern housing, east and west.
GNU Webster's 1913
- n. (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.
Etymologies
- Latin hypocaustum, from Ancient Greek ὑπό (hypo, "underneath") + καίειν (kaiein, "to light a fire, burn") (Wiktionary)
- Latin hypocaustum, from Greek hupokauston, from hupokaiein, to light a fire beneath : hupo-, hypo- + kaiein, to burn. (American Heritage® Dictionary of the English Language, Fourth Edition)
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.”
“A dozen burials found in the surrounding hypocaust in the nineteenth century would be consistent with a graveyard around a church*.”
“The hypocaust was rebuilt, and part of the suspended floor was found still intact when excavated in 1969.”
““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.””
“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.”
“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.”
“The hypocaust took up the entire basement, which allowed heated air to flow beneath the caldarium floor, and other rooms as well, and inside the walls through many terra-cotta pipes.”
“The water for the other two rooms was heated by wood-fired furnaces located in the hypocaust—the heating area.”
“The caldarium still shows the hypocaust underfloor heating system.”
“The floor, hollow underneath and heated by a stoked hypocaust fire, had mosaics the equal of Italy's.”
Lists
These user-created lists contain the word ‘hypocaust’.
-
phrontistery - h
from phrontistery.info
habanera, habergeon, habilable, habilatory, habile, habiliment, habilitate, habromania, hachure, hackle, hackney, hadal and 568 more...
-
Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
-
Most Obscure Words
acatalectic, acosmism, acuate, acuminate, adscititious, adytum, akratisma, alieniloquy, allelomorph, allochiria, allodium, alnage and 620 more...
-
Looking Words Up is Time-Consuming, D...
Stuff found while looking up other stuff, and there's no place to put this stuff.
storax, spignel, cassia lignea, gum serapin, spikenard, paraterminal, paraterminal, cingulate gyrus, hypocaust, laconicum, tepidarium, frigidarium and 119 more...
-
Outlander series words
A place for me to keep words I found (or found anew) while reading Diana Gabaldon's Outlander series. (Culling my enormous "Learned (or Encountered) in Reading" list.)
gralloch, yeuk, corpse-candle, saprophytic, baldachin, Kermanshah, celandine, tynchal, quaich, mesentery, basidium, dittany and 244 more...
-
bertilak's Words
antidisestablishm..., feldercarb, wainscoting, eleemosynary, oxymoron, fuliginous, libration, lammergeier, saxifrage, ichor, lambent, smaragdine and 414 more...
-
wordhoard
dilatory, ataraxia, hermit, cabana, hut, dome, vestigial, porcine, crapulous, usufruct, curmudgeon, bombastic and 229 more...
-
What David Foster Wallace circled in ...
ablative, ablaut, abulia, acephalous, ACTH, adit, adumbrate, agrapha, ailanthus, aleatory, alfresco, algolagnia and 474 more...
-
Wordie/Wordnik Curio Cabinet
Oddments culled from my "main" lists that belong in a display cabinet of their own, plus sundry other curiosities. :-)
zeugma, ziggurat, xiphoid, xeric, whizgigging, whangdoodle, viviparous, vivific, vinolent, verjuice, vellicate, velleity and 1193 more...
-
What David Foster Wallace Circled in ...
http://www.slate.com/id/2250784/
ablative absolute, ablaut, abulia, acephalous, ACTH, adit, adumbrate, agrapha, aleatory, ailanthus, alfresco, algolagnia and 482 more...
-
Words of the Day
glabella, chirotony, nook-shotten, crapehanger, filemot, swirlie, egosurf, lexiphanicism, Ruritanian, stichometry, chrononaut, faldstool and 2244 more...
Tweets
Looking for tweets for hypocaust.

hernesheir Roman communal toilet seat warmer? Jan 30, 2010
chained_bear "'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 Jan 30, 2010