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.
Recent Examples of axial from the Web. 1  The moon acts as an anchor, preventing the Earth from varying its axial tilt by more than a degree or two. 2  The midsummer, after all, is marked by ancient traditions hailing the planetâs special axial tilt toward our mother sun.