Architectural and Engineering Glossary
An entrance or opening,usually one of a series,which pierces a bank of seats in a theater,stadium,or the like.
A wedge shaped masonry unit in an arch or vault whose converging sides are cut as radii of one of the centers of the arch or vault.
Same as arch brick.
On drawings,abbr.for vent pipe.
1.On drawings,abbr.for “versus.”2.Abbr. for vent stack.3.Abbr.for “vapor seal.”
A pit-like natural cavity in stone,usually between a small fraction of an inch and a few inches in diameter;may be lined with crystals or layers of mineral materials;most common in dolomite,limestone,and marble.
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An irreversible process during which a rubber compound,through a change in its chemical structures,becomes less plastic,more resistant to swelling by organic liquids,and more elastic (or the elastic properties are extended over a greater range of temperature).