Glossary

Arch

Types include: Basket arch or Anse de Panier (French, lit. basket handle): three-centred and depressed, or with a flat centre. Chancel: dividing chancel from nave or crossing in a church. Crossing: spanning piers at a crossing in a church. Depressed or three-centred: with a rounded top, but curving inward more at the sides. Four-centred: with four arcs, the lower two curving inward more than the upper, with a blunt central point; typical of late medieval English architecture. Jack arch: shallow segmental vault springing from beams, used for fireproof floors, bridge decks, etc. Ogee (adjective ogival): a pointed arch with a double reverse curve, especially popular in the 14th century; a nodding ogee curves forward from the wall face at the top. Parabolic: shaped like a chain suspended from two level points, but inverted. Relieving or discharging: incorporated in a wall to relieve superimposed weight. Shouldered: with arcs in each corner and a flat centre or lintel. Skew: spanning responds not diametrically opposed. Stilted: with a vertical section above the impost i.e. the horizontal moulding at the springing. Strainer: inserted in an opening to resist inward pressure. Three-centred: see Depressed, above. Transverse: spanning a main axis (e.g. of a vaulted space). Triumphal arch: influential type of Imperial Roman monument, free-standing, with a square attic or top section and broad sections to either side of the main opening, often with lesser openings or columns. Tudor: with arcs in each corner joining straight lines to the central point. Two-centred: the simplest kind of pointed arch.

Perpendicular

English version of late Gothic, developed from the 1320s, which continued into the early 16th century; sometimes abbreviated to Perp. Characterised by large windows with a grid pattern of mullions and transoms, with the mullions continuing to the head to the arch, which is often of flattened or four-centred form. This motif of panel tracery is used also for wall decoration, and on the fan vaults that were used for the most prestigious buildings.

Romanesque

The dominant style of Western Europe in the 11th and 12th centuries. It is associated especially with the expansion of monasticism and the building of large stone churches, and is characterized by massive masonry, round-headed arches and vaulting inspired by ancient Roman precedent, and by the use of stylized ornament. In England it is commonly known as Norman.

Tracery

Openwork pattern of masonry or timber in an opening, especially the upper part of an opening; most common in Gothic architecture. Blind tracery is applied to a solid wall. Plate tracery, the earliest form, introduced c. 1200, has shapes cut through solid masonry. Bar tracery, introduced c. 1250, has patterns are formed by intersecting moulded ribwork continuing upwards from the mullions. Bar tracery types include: curvilinear tracery, with uninterrupted flowing curves, typical of the 14th century (also called flowing tracery); geometrical tracery, typical of c.1250-c.1310, which uses simple forms, especially circles, chiefly foiled; intersecting tracery, used c. 1300, formed by interlocking mullions each branching out in two curved bars of the same radius but different centres; loop tracery (Scots), used c. 1500-45, with large uncusped loop-like forms; panel tracery, with even upright divisions made by a horizontal transom or transoms; reticulated tracery, early 14th century, with net-like patterns of ogee- (double-curved) ended lozenges; Y-tracery, used c. 1300, which branches into a Y-shape.