Small top storey within a roof. Also the storey above the main entablature of a classical fa
Attic base
In classical architecture, a type of base used on columns especially of the Ionic type, with two large convex rings joined by a spreading convex moulding.
Aumbry
In a church or chapel, a recess or cupboard to hold sacred vessels for the Mass.
Bag-rubbed pointing
Pointing (exposed mortar jointing) that is flush at the edges and gently recessed in the middle.
Bailey
An enclosure defended by a ditch and palisade, usually as part of a motte-and-bailey castle.
Balance beam
(Canals): Beam projecting horizontally for opening and closing lock gates.
Balconette
A small balcony or window-guard attached to an individual window.
Baldacchino
Free-standing canopy, originally fabric, over an altar. Compare ciborium.
Ballflower
Globular flower of three petals enclosing a ball. Typical of the years c. 1300-30, during the Decorated phase of English medieval architecture.