great circle

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center
• Hypernyms:
line
• Hyponyms:
celestial equator, equinoctial circle, equinoctial line, equinoctial, ecliptic,
ecliptic, horizon, celestial horizon, hour circle, meridian,
line of longitude, vertical circle