2. A map; esp., a hydrographic or marine map; a map on which
is projected a portion of water and the land which it
surrounds, or by which it is surrounded, intended
especially for the use of seamen; as, the United States
Coast Survey charts; the English Admiralty charts.
{Globular chart}, a chart constructed on a globular
projection. See under {Globular}.
{Heliographic chart}, a map of the sun with its spots.
{Mercator's chart}, a chart constructed on the principle of
Mercator's projection. See {Projection}.
{Plane chart}, a representation of some part of the
superficies of the globe, in which its spherical form is
disregarded, the meridians being drawn parallel to each
other, and the parallels of latitude at equal distances.
{Selenographic chart}, a map representing the surface of the
moon.
{Topographic chart}, a minute delineation of a limited place
or region.