Radius vs. Spherical

Radiusnoun

(anatomy) The long bone in the forearm, on the side of the thumb.

Sphericaladjective

(geometry) Shaped like a sphere.

Radiusnoun

(zoology) The lighter bone (or fused portion of bone) in the forelimb of an animal.

Sphericaladjective

(geometry) (no comparative or superlative) Of, or pertaining to, spheres.

Radiusnoun

(entomology) One of the major veins of the insect wing, between the subcosta and the media

Sphericaladjective

(mathematics) Of a coordinate system, specifying the location of a point in a plane by using a radius and two angles.

Radiusnoun

(geometry) A line segment between any point of a circle or sphere and its center.

Sphericaladjective

(astrology) Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.

Radiusnoun

(geometry) The length of this line segment.

Sphericaladjective

Having the form of a sphere; like a sphere; globular; orbicular; as, a spherical body.

Radiusnoun

Anything resembling a radius, such as the spoke of a wheel, the movable arm of a sextant, or one of the radiating lines of a spider's web.

Sphericaladjective

Of or pertaining to a sphere.

Radiusnoun

A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.

Sphericaladjective

Of or pertaining to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.

‘Knaves, thieves, and treachers by spherical predominance.’; ‘Though the stars were suns, and overburnedTheir spheric limitations.’;

Radiusnoun

The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla.

Sphericaladjective

of or relating to spheres or resembling a sphere;

‘spherical geometry’;

Radiusnoun

A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2.

Sphericaladjective

having the shape of a sphere or ball;

‘a spherical object’; ‘nearly orbicular in shape’; ‘little globular houses like mud-wasp nests’;

Radiusnoun

The barbs of a perfect feather.

Radiusnoun

The movable limb of a sextant or other angular instrument.

Radiusnoun

the length of a line segment between the center and circumference of a circle or sphere

Radiusnoun

a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)

Radiusnoun

a circular region whose area is indicated by the length of its radius;

‘they located it within a radius of 2 miles’;

Radiusnoun

the outer and slightly shorter of the two bones of the human forearm

Radiusnoun

support consisting of a radial member of a wheel joining the hub to the rim

Radius

In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. The name comes from the Latin radius, meaning ray but also the spoke of a chariot wheel.