great circle
A geometric term for the largest possible circle on a sphere, such as the equator or a meridian. Used in navigation and spherical geometry.
A great-circle route connects the shortest distance.
赤道は地球の大圏の一つだ。
The equator is one of the Earth's great circles.
gnomonic projection; central projection
great circle route
great circle route
From 大 (great) + 圏 (circle, sphere). A straightforward kanji compound for the mathematical concept of a great circle.