Radius and Semidiameter

Radius noun - A straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere).

Semidiameter and radius are semantically related. in range topic. In some cases you can use "Semidiameter" instead a noun "Radius". popular alternative

Nearby Words: radiation, radial

Semidiameter noun - The apparent radius of a celestial body when viewed as a disc from the earth.

Radius and semidiameter are semantically related. You can use "Radius" instead a noun "Semidiameter".