noun
also fathom curve
: a usually sinuous line on a nautical chart joining all points having the same depth of water and thereby indicating the contour of the ocean floor
noun
also fathom curve
: a usually sinuous line on a nautical chart joining all points having the same depth of water and thereby indicating the contour of the ocean floor
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012