unit circle

English

Noun

Wikipedia unit circle (plural unit circles)

1. (geometry) A circle of radius 1.
2. (trigonometry, the unit circle) The circle of radius 1 with centre at the origin, used in defining trigonometric functions.

Usage notes

• Unit circle is seldom used in the simple geometric sense, where "a circle of radius 1" is much more common.

Translations

circle of radius 1

• Finnish: yksikköympyrä (fi)
• French: cercle unité (fr) m

• Italian: circonferenza unitaria (it) f
• Swedish: enhetscirkel (sv) c

circle of radius 1 with centre at the origin, used in trigonometry

• Finnish: yksikköympyrä (fi)
• French: cercle trigonométrique m, cercle unité m
• Hungarian: egységkör (hu)

• Italian: circonferenza unitaria (it) f
• Swedish: enhetscirkel (sv) c