emittance

[ ih-mit-ns ]

/ ɪˈmɪt ns /

noun Optics.

the total flux emitted per unit area.

Nearby words

emission nebula, emission spectrum, emissive, emissivity, emit, emittance, emitter, emlyn, emma, emmanuel, emmarble

Compare luminous emittance, radiant emittance.

Origin of emittance

First recorded in 1935–40; emit + -ance

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019