"Radial" refers to something that radiates outward from a central point, like the spokes on a bicycle wheel. It can also describe a type of symmetry where elements are arranged around a central axis. Full definition
HARPS allows for measurements of radial velocities of stars, which can be affected by the presence of nearby planets, to be taken with the highest accuracy currently available. (sciencedaily.com)
All of that combined with drag radial tires will enable the Exorcist to run from 0 - 60 mph in under 3 seconds and the 1/4 mile in less than 10 seconds. (car24news.com)
The smart use of radial menus and button mapping made the novelty of gamepad control a non-issue. (darkstation.com)