Radius

Radius encompasses several distinct mathematical and physical concepts united by the idea of distance from a center point.

Meanings

Radius (geometry) — the distance from the center of a Circle to its edge, fundamental to measuring Area and Circumference.

Radius (anatomy) — one of two bones in the human forearm, running from elbow to thumb side of the wrist.

Radius (astronomy) — the physical size of a celestial object like a star or planet, crucial for understanding stellar properties and supernovae.

Radius (broadcasting) — the geographic area reached by a radio station or transmission signal.

Radius (social) — the sphere of influence, connection, or impact around a person, organization, or event.