rowland
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(′rō′lənd)
(spectroscopy) A unit of length, formerly used in spectroscopy, equal to 999.81/999.94 angstrom, or approximately 0.99987 × 10-10 meter.
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[Etymology: H. A. Rowland; USA 1848-1901] astrophysics A unit of the order of an angstrom used in the 1980s for expressing a discrepancy in published data on solar spectra, arising from a pervasive misunderstanding of a reference length.
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