The fraction of incident electromagnetic radiation reflected by a surface, especially of a celestial body.
The reflecting power of a planet, satellite, or asteroid, expressed as a ratio of reflected light to the total amount falling on the surface.
Webster's New World
The spongy white tissue on the inside of the rind of citrus fruit.
The degree to which a surface reflects subnuclear particles, esp. neutrons, that strike it: expressed as the ratio of the number of particles that leave the surface in any direction to the number that strike it.
The fraction of the total light striking a surface that gets reflected from that surface. An object that has a high albedo (near 1) is very bright; an object that has a low albedo (near 0) is dark. The Earth's albedo is about 0.37. The Moon's is about 0.12.
American Heritage Science
Other Word Forms of Albedo
Origin of Albedo
Late Latin albēdōwhitenessfrom Latin albuswhitealbho- in Indo-European roots
American Heritage Dictionary of the English Language, 5th Edition