an angle formed at the intersection of two great circles of a sphere
spherical angle in American English
an angle formed by the intersecting arcs of two great circles on a sphere
spherical angle in American English
noun
Geometry
an angle formed by arcs of great circles of a sphere
Word origin
[1670–80]This word is first recorded in the period 1670–80. Other words that entered Englishat around the same time include: cohesion, episode, festoon, routine, slump