noun
: a circle formed on the surface of a sphere by the intersection of a plane that does not pass through the center of the sphere ; specifically : such a circle on the surface of the earth — compare great circle
noun
: a circle formed on the surface of a sphere by the intersection of a plane that does not pass through the center of the sphere ; specifically : such a circle on the surface of the earth — compare great circle
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012