| Noun | 1. | radial - pneumatic tire that has radial-ply casing | |
| Adj. | 1. | radial - relating to or near the radius; "the radial aspect of the forearm" | |
| 2. | radial - relating to or moving along or having the direction of a radius; "radial velocity" | |
| 3. | radial - issuing in rays from a common centerXs; relating to rays of light; "radial heat" | |
| 4. | radial - 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"symmetric, symmetrical - having similarity in size, shape, and relative position of corresponding parts | |