moiré

moiré [mȯ′rā]

(communications)

In television, the spurious pattern in the reproduced picture resulting from interference beats between two sets of periodic structures in the image.

(graphic arts)

Undesirable patterns that occur when a halftone is made from a previously printed halftone or steel engraving; they are caused by the conflict between the dot arrangement produced by the halftone screen and the dots or lines of the original halftone or engraving; careful rotation of the halftone screen by the photographer or engraver may minimize moiré.

(textiles)

A fabric finish in which the warp has yarn of harder twist than the filling, with a surface pattern resembling water ripples that is produced by engraved rollers, heat, pressure, steam, and chemicals.