Map n.
 1. A representation of the surface of the earth, or of some portion of it, showing the relative position of the parts represented; -- usually on a flat surface.  Also, such a representation of the celestial sphere, or of some part of it.
 Note: ☞ There are five principal kinds of projection used in making maps: the orthographic, the stereographic, the globuar, the conical, and the cylindrical, or Mercator's projection. See Projection.
 3. Anything which represents graphically a succession of events, states, or acts; as, an historical map.
    Thus is his cheek the map of days outworn.   --Shak.
 Map lichen Bot., a lichen (Lecidea geographica.) growing on stones in curious maplike figures.