Definition of contours:
(n) :
An outline, boundary or border, usually of curved shape.
(n) :
A line on a map or chart delineating those points which have the same altitude or other plotted quantity: a contour line or isopleth; (metonymically) the landform or its surface.
(v) :
(transitive) To form a more or less curved boundary or border upon.
(v) :
(transitive) To mark with contour lines.
(n) :
(figurative) A general description giving the most important points.
(v) :
(intransitive) To practise the makeup technique of contouring.