Pronunciation: (al-bē'dō), [key]
1. Astron.the ratio of the light reflected by a planet or satellite to that received by it.
2. Meteorol.such a ratio for any part of the earth's surface or atmosphere.
3. the white, inner rind of a citrus fruit.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.