1. a picture or decoration made of small, usually colored pieces of inlaid stone, glass, etc.
2. the process of producing such a picture or decoration.
3. something resembling such a picture or decoration in composition, especially in being made up of diverse elements: a mosaic of borrowed ideas.
4. Also called aerial mosaic, photomosaic. Surveying. an assembly of aerial photographs matched in such a way as to show a continuous photographic representation of an area (mosaic map)
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