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Term Definition
Bare Electrode. A filler-metal electrode used in arc welding consisting of a metal wire with no coating other than that incidental to the drawing of the wire.  
Bare Solid Wire. Uninsulated single wire used as an electric conductor.  
Bare Stranded Wire. Uninsulated group of fine wires used as a single electric conductor.  
Barge. A floating platform or vessel from which construction activities may be performed; often used in rivers to install bridge piers and also used extensively in waterfront construction.  
Bargeboard. A board, sometimes ornamental, fixed to the end of a gable, running from ridge to eave, to hide the ends of the roof timbers.  
Barium Sulphate. Heavy, white, extender pigment made from the mineral, barite; unaffected by acids, alkalis.  
Bark pocket. An opening between a trees annual growth rings that contains bark.  
Bark. The tough outer layer of a tree.  
Barn. 1. A large farm building for storing hay and grain and housing farm animals and equipment. 2. An unusually large and bare building, pejoratively. 3. A large building for storing a fleet of trucks or trolleys.  
Barometer. An instrument for measuring atmospheric air pressure, it may be calibrated in pounds per square inch, or in inches or millimeters of mercury in a column.  
Baroque. Highly ornate, grotesque, flamboyant, and extravagant in style, especially of the architecture, art, and music of the 17th and 18th centuries.  
Barracks. 1. A building or building complex used to house soldiers. 2. A large plain building.  
Barratry. The persistent incitement of litigation.  
Barrel Ceiling. A rounded or semi-circular ceiling.  
Barrel Shell. A scalloped roof structure of reinforced concrete that spans in one direction as a barrel vault and in the other as a folded plate.  
Barrel Tile. A type of ceramic or cast roofing tile.  
Barrel Vault. A segment of a cylinder that spans as an arch; used as a structural technique to support a ceiling or roof by having all of the components act in compression as an arched ceiling; used extensively in ancient buildings and into the 19thcentury, because no structural steel or timber is needed.  
Barrel. A unit of weight for cement. 376 lbs. net, equivalent to 4 U. S. bags of portland cement.  
Barricade. A barrier; an obstruction to prevent passage or to prevent access.  
Barrier Coating. 1. Shielding or blocking coating or film. 2. See Transition Coating.  
Barrier, Vapor. A type of plastic sheeting that both eliminates drafts and keeps moisture from damaging a building or structure.  
Barrier. A fence or other obstacle that bars advance or access.  
Barroom. A room or establishment in which the principal feature is a bar for the serving of liquor.  
Basalt Ware. A black unglazed vitreous ceramic ware having the appearance of basalt rock.  
Basalt. A dark basic volcanic rock whose strata sometimes form columns.  
Base Bead. See Base Screed  
Base Bid. A stipulated construction sum based on the contract documents.  
Base Board. See Base  
Base Cabinet . 1. Case, box, or piece of furniture which rests on the floor with sets of drawers or shelves with doors, primarily used for storage. 2. Floor-mounted cabinets, usually with a counter, sink or appliance installed.  
Base Cap. A finish fitting for tile.  

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