General English


  • noun a disease of plants that makes yellow patterns on the leaves and can seriously affect some crops. It is often caused by viruses.



  • An aerial photographic map pasted up using the center portion of overlapping vertical photographs.
  • A design created by inlaying pieces of stone, glass, or tile in a mortar bed.
  • A design of inlaid pieces of wood.


  • A material, usually a thin mica sheet, which on one side is coated with a large number of photosensitive globules, and on the other a photoemissive surface. It is used in TV camera tubes, where the optical image is focused upon the first surface, and the equivalent electrical charge patterns produced on the other are scanned by the electron beam of said tube. Also called photomosaic.
  • The pattern formed by the photosensitive globules of a mosaic (1).
  • A pattern formed by setting small pieces on a surface.
  • (written as Mosaic)
    An early graphics-based Web browser which is still popular.

Information & Library Science

  • noun a picture made up of small dots as in a videotext system

Media Studies

  • noun a light-sensitive surface on a television camera tube, consisting of a thin sheet covered by particles that convert incoming light into an electric charge for scanning by an electron beam

Real Estate

  • noun a picture or design made with small pieces of coloured material such as glass or tile stuck onto a surface

Origin & History of “mosaic”

Mosaic work is etymologically work ‘of the muses’. The word comes ultimately from Greek mouseion, which originally meant literally ‘place of the muses’, and has also given English museum. Somehow in medieval Latin it became altered to mūsaicus or mōsaicus, and passed via early modern Italian mosaico and French mosaïque into English as mosaic. It has no etymological connection, incidentally, with Mosaic ‘of Moses’ (17th c.).