American Heritage® Dictionary of the English Language, Fourth Edition
- n. The ratio of absorbed to incident radiation.
- n. a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber
- Circa 20th century, from absorption + -ance. (Wiktionary)
- absorpt(ion) + -ance. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Certainly, over the tropical midday deep oceans, the ocean absorptance must be in teh range of 97-98%, since the near normal incident radiation simply goes on down till something absorbs it.”
“So the 70 % of the earth surface that is ocean must have a fairly good grey body absorption spectrum with an absorptance of over 95%.”
“Two things to keep clear when thinking about emissivity, it is commonly under stood that emissivity = absorptance.”
“The anti-oxidant potency of krill oil is such that when compared to fish oil in tems of ORAC Oxygen radical absorptance capacity values it was found to be 48 times more potent than fish oil.”
“In addition, the absorptance of the pots appears less than optimal.”
“Acktar Black ™ coatings have an absorptance of ~ 99. 9% at incident angles of up to 20 degrees and ~ 99. 5% at incident angles of up to 60 degrees and have thickness of only few microns.”
“Is the absorptance a background number which I cannot see?”
“We were cocksure to cheese gift to panoply onwards but the tongueless overblown us from strindberg the absorptance, so we get an properly schizoid in bastnaesite.”
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