Reflectance values express the percentage of light that is reflected back from a surface, the difference having been absorbed or transmitted by the surface.
Definition of AXIAL. 1. : of, relating to, or having the characteristics of an axis.
1 Answer. , Over 50 years using words. Axial means along the axis of rotation: Radial means along a radius (a line from the center to the outer surface perpendicular to the axis) Views Â· View Upvotes.