Glossary

A vertical slit for archers in medieval fortification walls, with jambs deeply splayed toward the interior.

Masonry composed of rectangular units of burnt clay or shale, or stone, generally larger in size than brick and properly

A chamber located below the fireplace or firebox for the collection and removal of ashes.

Architecture of the Assyrian empire (centered between the Tigris and Upper and Lower Zab rivers in southwest Asia); was expressive

A backflow preventer containing a float check, check seat, and an air inlet port. As water flows through this device,

A line of arches, raised on columns, that are represented in relief as decoration of a solid wall; sometimes seats