Glossary

The voussoir or keystone of an arch, especially when carved as a cartouche.

The chief meeting place or marketplace in an ancient Greek city.

A machine which draws in air at atmospheric pressure, then compresses it to pressures higher than atmospheric and delivers it

A stream of high-velocity temperature- controlled air which is directed downward, across an opening; excludes insects, exterior drafts, etc.; prevents the transfer of

A structural system for supporting an acoustical ceiling; may incorporate lighting fixtures and air diffusers.

1. Strictly, a pedestal at the corners or peak of a roof to support an ornament. 2. More usually, the

1. The elevated stronghold of a Greek city, usually with the temple of the patron divinity. 2. (cap.) The Acropolis

A sharply pointed arch whose centers are farther apart than the width of the arch.

An architectural style based on the work of Robert Adam (1728 1792) and his brothers, predominant in England in the