Bible Dictionaries
Triforium

Webster's Dictionary

(n.) The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows.

Bibliography Information
Webster, Noah. Entry for 'Triforium'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/triforium.html. 1828.