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emittance

[ ih-mit-ns ]
/ ɪˈmɪt ns /
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noun Optics.

the total flux emitted per unit area.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of emittance

First recorded in 1935–40; emit + -ance
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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