Noun langley has 2 senses
  1. langley - unit of solar radiation
    --1 is a kind of
    unit of measurement, unit
  2. Langley, Samuel Pierpoint Langley - United States astronomer and aviation pioneer who invented the bolometer and contributed to the design of early aircraft (1834-1906)
    --2 is a kind of astronomer, uranologist, stargazer; inventor, discoverer, artificer
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