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emir
emirate
emissary
emission
emission nebula
emission standard
emission standards
emissive
emissivity
emit
emitter
Emmanuel
Emmenthaler
emmer
emmet
emmetropia
Emmy
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emissivity

e·mis·siv·i·ty [ èmmi sívvətee ] (plural e·mis·siv·i·ties)


noun 
Definition:
 
relative ability to emit radiation: the ability of a surface to emit radiation, measured as the ratio of the energy radiated by a surface to that radiated by a blackbody at the same temperature.
Symbol  ε


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