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n. pl. lang·leys
A unit equal to one gram calorie per square centimeter of irradiated surface, used to measure solar radiation.

[After Samuel Pierpont Langley (1834-1906), American astronomer and physicist.]


(Biography) Samuel Pierpont. 1834–1906, US astronomer and physicist: invented the bolometer (1878) and pioneered the construction of heavier-than-air flying machines


(ˈlæŋ li)

1. Edmund of, York, Edmund of Langley, 1st Duke of.
2. Samuel Pierpont, 1834–1906, U.S. astronomer, physicist, and pioneer in aeronautics.
3. William, Langland, William.
4. a city in SW British Columbia, in SW Canada, near Vancouver. 53,434.


(ˈlæŋ li)

n., pl. -leys.
a unit of incident solar radiation, equal to one calorie per square centimeter.
[1945–50; after S. P. Langley]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.langley - unit of solar radiation
unit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"
2.Langley - United States astronomer and aviation pioneer who invented the bolometer and contributed to the design of early aircraft (1834-1906)
References in classic literature ?
He was just as free to speak to gentlemen of his own rank as to those below him; for another day, when we were out, we met a Captain Langley, a friend of our master's; he was driving a splendid pair of grays in a kind of break.
Now, you are a military man, Langley, and no doubt like to see your regiment look well on parade,
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Leeds Crown Court heard that 48-year-old June Langley had a long record of dishonesty offences including previous convictions where she callously targeted householders because of their vulnerability and age.
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CAMPAIGNERS renewed calls for a "Northumberland Day" as they dug deep for the cause at Langley Castle.
LANGLEY Castle has been part of Northumberland's landscape since 1350.