baptistery
A building or part of one wherein the sacrament of baptism is administered.
General
General
banner vane
A weather vane having the shape of a banner; balanced by a weight on the other side of the banner.
General
back fillet
The return of the margin of a groin, doorjamb, or window jamb when it projects beyond a wall.
General
backwater valve, backflow valve
A type of check valve in a drainage pipe; reversal of flow causes the valve to close, thereby cutting off
General
bacterial corrosion
A corrosion which results from substances (e.g., ammonia or sulfuric acid) produced by the activity of certain bacteria