Adjective (adverb globally)
of, relating to, or involving the entire world : worldwide <a global system of communication>; also : of or relating to a celestial body (planet).
ORIGIN French (1670 AD), globe + -al "worldwide, universal".
noun (pl. albedos)(chiefly Astronomy)
The proportion of the incident light that is reflected by a surface or ratio of light reflected from a surface.
ORIGIN Latin (1859 AD), L. albedo, lit. "whiteness" from albus "white".