noun, masculine/sɛʁ.klə tʁi.ɡɔ.nɔ.me.tʁik/plural: cercles trigonométriques
unit circle (circle of radius 1 with centre at the origin, used in defining trigonometric functions)
/sɛʁ.klə tʁi.ɡɔ.nɔ.me.tʁik/
unit circle (circle of radius 1 with centre at the origin, used in defining trigonometric functions)