Radial things stick out from a center point or have to do with the radius of a circle. On a map, you can see that a traffic circle or roundabout consists of radial streets extending out from the center.

A radius is a line from the center of a circle to its edge, or circumference. The adjective radial describes anything that acts as a radius or resembles one — often something radial is literally a line sticking straight out from a center point. Radial tires are designed so that each individual rubber cord making up the tire's surface lies in a radial direction from the middle of the tire. In Latin, radius means "shaft" or "spoke of a wheel."

Definitions of radial

adj relating to or near the radius

“the radial aspect of the forearm”

adj relating to or moving along or having the direction of a radius

radial velocity”

adj arranged like rays or radii; radiating from a common center

radial symmetry”
“many cities show a radial pattern of main highways”
radiate, stellate
symmetric, symmetrical
having similarity in size, shape, and relative position of corresponding parts

adj issuing in rays from a common center; relating to rays of light

radial heat”

n pneumatic tire that has radial-ply casing

radial tire, radial-ply tire
Type of:
pneumatic tire, pneumatic tyre
a tire made of reinforced rubber and filled with compressed air; used on motor vehicles and bicycles etc

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