(French, lit. earth-filled): In a fort, the level surface of a rampart behind a parapet for mounting guns.
Tessellated pavement
Mosaic flooring, particularly Roman, made of tesserae, i.e. small cubes of glass, stone or brick.
(lit. head): Flat canopy over a tomb or pulpit, where it is also called a sounding-board.
Tester tomb
Tomb-chest with effigies beneath a flat canopy (tester), either free-standing (tester with four or more columns), or attached to a wall (half-tester) with columns on one side only.
Of a porch or portico: with four columns across the front.
Thermal window
A semicircular window with two mullions; also called a Diocletian window after its use in the Baths of Diocletian, Rome.
(Irish): An exchange or market house; the English term is tolsey.
Three-centred arch
An arch with a rounded top, but curving inward more at the sides; also called a depressed arch.
Three-decker pulpit
A raised and enclosed platform for the preaching of sermons, with a reading desk below and clerk’s desk below that. Compare two-decker pulpit.
Through purlins
Purlins (horizontal longitudinal timbers in a roof structure) which pass through or past the principals; they include clasped purlins, which rest on queenposts or are carried in the angle between principals and collar, and trenched purlins which are trenched into the backs of the principals.