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British Dictionary definitions for campbell-stokes recorder

Campbell-Stokes recorder

noun
  1. an instrument for recording hours of sunshine per day, consisting of a solid glass sphere that focuses rays of sunlight onto a light-sensitive card on which a line is burnt
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012