This website makes references to a number of terms that may not be familiar to you. Use the links below to explore this glossary.


Terra Cotta

fired clay cast in molds, often used for decorative elements or to clad a building exterior



flat or curved piece of fired clay, stone, concrete or other material used especially for roofs, floors or walls and often for ornamental work



freestanding building or attached structure of a building, of great height compared to its floor area



pattern of interlocking muntins in the upper part of a Gothic window



horizontal bar between the top of a window or door and the structural opening


Transom Light (Window) or Panel

section above a window or door


Trefoil (Arch or Window)

having a three-lobed opening



decorative trim, primarily of wood



having the top or end cut off


Truncated Pyramidal Roof

pyramidal roof with the top cut off



structural element assembled from a number of individual structural elements fastened together and used to span a distance



last phase of the Perpendicular Gothic style during the reigns of Henry VII and Henry VIII (1485 to 1547)


Tudor Arch

shallow arch that comes to a subtle point



small, slender tower projecting from the corner of a building