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The fraction of radiant energy that passes through a substance
Answer for the clue "The fraction of radiant energy that passes through a substance ", 13 letters:
transmittance
Word definitions for transmittance in dictionaries
Wiktionary
Word definitions in Wiktionary
n. 1 a transmission 2 (context physics English) the fraction of incident light, or other radiation, that passes through a substance
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
1786, from transmit + -ance .
Wikipedia
Word definitions in Wikipedia
Transmittance of the surface of a material is its effectiveness in transmitting radiant energy . It is the fraction of incident electromagnetic power that is transmitted through a sample, in contrast to the transmission coefficient , which is the ratio ...
WordNet
Word definitions in WordNet
n. the fraction of radiant energy that passes through a substance [syn: transmission ]
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Transmittance \Trans*mit"tance\, n. Transmission.