n. Materials for mats; matwork.n. A fabric of some coarse material, as rushes, flags, grass, straw, hemp, bamboo, etc., used for covering floors, as a packing for some kinds of goods, and for various other purposes.n. Nautical, a texture made of strands of old rope, or of spun-yarn, beaten flat and interwoven, used to prevent chafing.n. The mat of a picture.—n. The act or process of producing a dull or roughened surface on metal; specifically, the process of covering plates with varnish in gilding on water-size.n. A dull, slightly roughened surface, free from polish, produced by the use of the mat.n. In stained glass, color laid on to deaden a surface or to render glass less transparent.