A half gable, such as that which closes the end of a penthouse roof or of the aisle of a […]

A slender form of drill used for boring or drilling a blasthole in rock.

Abbr. for American Institute of Electrical Engineers

Abbr. for American Institute of Architects

Abbr. for ampere-hour

An obelisk, or the spire of a church tower.

A system of porous or perforated pipes laid in a trench filled with gravel (or the like); used for draining