from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The ratio of the total amount of radiation, as of light, reflected by a surface to the total amount of radiation incident on the surface.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The ratio of the flux reflected to that incident on a surface
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the fraction of radiant energy that is reflected from a surface
Sorry, no etymologies found.