Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
the shape of a mass of land or other object, especially its surface or the shape formed by its outer edge:
a line on a map that joins points of equal height or depth, in a way that shows high and low areas of land:
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions