Meaning of transmittance

trans•mit•tance

Pronunciation: (trans-mit'ns, tranz-), [key]
— n.
  1. the ratio of the radiant flux transmitted through and emerging from a body to the total flux incident on it: equivalent to one minus the absorptance. Also called transmission.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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