an instrument for measuring small amounts of radiant energy, consisting of a sensitive thermocouple connected to a galvanometer.
Origin of radiomicrometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an instrument for detecting and measuring small amounts of radiation, usually by a sensitive thermocouple
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