emittance

noun
emit·​tance | \ē-ˈmi-tᵊn(t)s \

Definition of emittance 

1 : the energy radiated by the surface of a body per second per unit area

First Known Use of emittance

1940, in the meaning defined at sense 1

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Dictionary Entries near emittance

emissive power

emissivity

emit

emittance

emittent

Emma

Emmanuel

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The first known use of emittance was in 1940

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