an instrument for measuring solar radiation.
- solar urticaria,
- solar wind,
- solar year,
- solar-electric propulsion,
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any of various instruments for measuring solar radiation, as by use of a bolometer or thermopileAlso called: pyranometer
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