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| a number that is a submultiple of all the numbers of a given set |
| to take one number or quantity from another; deduct |
| contour line | |
| —n | |
| Often shortened to: contour a line on a map or chart joining points of equal height or depth | |
contour line (kŏn't r') Pronunciation Key
(click for larger image in new window) A line on a map joining points of equal elevation above a given level, usually mean sea level. ◇ The change in elevation between one contour line and the next is the contour interval. |