You searched for: “albedo
1. The fraction of incident light that is reflected in all directions from an uneven surface; especially, the surface of the earth.
2. The fraction of the solar radiation that is reflected back into space.
3. The ratio of the amount of light reflected from an object in all directions to the amount of incident light.

An albedo of 1.0 corresponds to a perfect reflector.

Word Entries containing the term: “albedo
planetary albedo
The fraction (approximately 30 percent) of incident solar radiation that is reflected by the earth-atmosphere system and returned to space, mostly by scattering from clouds in the atmosphere.
This entry is located in the following units: Astronomy and related astronomical terms (page 19) Geography Terms + (page 5)