Synonyms for radius

noun

• the length of a line segment between the center and circumference of a circle or sphere
• support consisting of a radial member of a wheel joining the hub to the rim
• a circular region whose area is indicated by the length of its radius
• a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
• the outer and slightly shorter of the two bones of the human forearm