What does "round angle" mean?

An angle of 360 degrees; a full circle.

What is a synonym for "round angle"?

Common synonyms include: perigon.

noun

noun ·Rare ·Advanced level

Noun

1
An angle of 360 degrees; a full circle.
"Two angles whose sum is a straight angle are called supplemental; two angles whose sum is a round angle we may call explemental."
2
an angle of 360 degrees wordnet

"Two angles whose sum is a straight angle are called supplemental; two angles whose sum is a round angle we may call explemental."