General

Any area which has become an economic and aesthetic liability to a community.

In plants, a fungus disease causing them to wither.

A three-way valve which permits liquid entering the valve to be mixed with liquid that recirculates through the valve; used

In hot-water systems, the mixing of hot water with cold water in order to raise the cold-water temperature. Blending usually

A soft round-tipped paintbrush used for blending colors and smoothing out brush marks left by coarser brushes.

A mixture of portland cement and other material such as granulated blast-furnace slag, pozzolan, hydrated lime, etc., combined either during

In wood, marble, etc., usually a minor appearance defect that does not necessarily affect durability or strength.

Discoloration in the face plies of wood veneer constructions caused by oozing of glue through the face veneers.