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solarimeter

American  
[soh-luh-rim-i-ter] / ˌsoʊ ləˈrɪm ɪ tər /

noun

  1. an instrument for measuring solar radiation.


solarimeter British  
/ ˌsəʊləˈrɪmɪtə /

noun

  1. Also called: pyranometer.  any of various instruments for measuring solar radiation, as by use of a bolometer or thermopile

"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

Etymology

Origin of solarimeter

First recorded in 1925–30; solar 1 ( def. ) + -i- ( def. ) + -meter ( def. )