triforium noun. [trʌɪ'fɔ:rɪǝm] Pl. -ria [-rɪǝ]. E18.
[Anglo-Latin, of unkn. origin.]
Architecture. A gallery or arcade above the arches at the sides of the nave, choir, and sometimes transepts of some large churches, orig. spec. of Canterbury Cathedral.

■ triforial adjective of, pertaining to, or constituting a triforium M19.

[TahlilGaran] English Dictionary ▲