Energy Glossary Definition (English)

Absorptivity Defined
The following is in context to Energy, because it's common for a single word to have multiple meanings you will find additional research links near the bottom of the page.
"In a solar thermal system, the ratio of solar energy striking the absorber that is absorbed by the absorber to that of solar energy striking a black body (perfect absorber) at the same temperature. The absorptivity of a material is numerically equal to its emissivity."
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