large circle
General term for a circle of large size, not necessarily mathematical.
Draw a large circle on the ground.
great circle
Mathematical term: a circle on a sphere whose plane passes through the center of the sphere. Contrasts with 小円 (small circle).
See also: 小円
The equator is one of the Earth's great circles.
denouement; grand finale; conclusion
great perfect mirror wisdom; adarsa-jnana
Compound of 大 (large) and 円 (circle). The mathematical sense is a direct translation of the English term 'great circle'.