Radial definition

(1) Arranged like rays or radii; radiating from a common center

"Radial symmetry"

"A starlike or stellate arrangement of petals"

"Many cities show a radial pattern of main highways"

(2) Issuing in rays from a common center; relating to rays of light

"Radial heat"

(3) Relating to or moving along or having the direction of a radius

"Radial velocity"

(4) Relating to or near the radius

"The radial aspect of the forearm"

(5) Pneumatic tire that has radial-ply casing