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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
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.
n., pl. -leys.
a unit of incident solar radiation, equal to one calorie per square centimeter.
[1945–50; after S. P. Langley]
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|Noun||1.||langley - unit of solar radiation|
|2.||Langley - United States astronomer and aviation pioneer who invented the bolometer and contributed to the design of early aircraft (1834-1906)|