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[trahy-fawr-ee-uh m, -fohr-] /traɪˈfɔr i əm, -ˈfoʊr-/
noun, plural triforia
[trahy-fawr-ee-uh, -fohr-] /traɪˈfɔr i ə, -ˈfoʊr-/ (Show IPA).
(in a church) the wall at the side of the nave, choir, or transept, corresponding to the space between the vaulting or ceiling and the roof of an aisle, often having a blind arcade or an opening in a gallery.
Origin of triforium
1695-1705; < Anglo-Latin, special use of Medieval Latin triforium kind of gallery, literally, something with three openings, equivalent to Latin tri- tri- + for(is) opening, door + -ium -ium
Related forms
triforial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for triforium
  • For the loading of the arch, however, the loading from the triforium columns is distributed through the diaphragm wall.
  • Alas, the marble columns in the triforium are all that remain from that period.
British Dictionary definitions for triforium


noun (pl) -ria (-rɪə)
an arcade above the arches of the nave, choir, or transept of a church
Derived Forms
triforial, adjective
Word Origin
C18: from Anglo-Latin, apparently from Latin tri- + foris a doorway; referring to the fact that each bay characteristically had three openings
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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