Glossary · T
Triforium
Also called triforia
The middle storey of a Gothic nave, between arcade and clerestory: a narrow arcaded passage in the thickness of the wall, backed by the aisle roof.
See also: Clerestory, Gallery
Rules that use the word
Arcade, triforium, clerestory. Divide the elevation of the nave into three storeys: a tall arcade opening into the aisles, a low triforium passage in the thickness of the wall against the aisle roof, and a clerestory of large windows reaching up into the vault.
Where it appears in the book
In the chapters Romanesque and Gothic.
A feature of Gothic architecture.
Nearby in the glossary
Transom · Transverse arch · Treillage · Triclinium · Triglyph · Trilithon · Triumphal arch · Trompe-l’oeil