plural of circle inversion

(geometry, inversive geometry, for a given circle with centre O and radius r) A transformation that maps any point P ≠ O to the point P’ on the ray from O through P for which OP × OP’ = r², and which maps O to the point at infinity.

(archaeology) a prehistoric monument consisting of standing stones arranged in a circle.

plural of circle lens

plural of circus ring

plural of circular definition

plural of circuit race

plural of circuit-breaker

plural of circle-jerk

plural of circular mil