radiometer

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌreɪdɪˈɒmɪtə/US:USA pronunciation: respellingUSA pronunciation: respelling(rā′dē om′i tər)


WordReference Random House Unabridged Dictionary of American English © 2025
ra•di•om•e•ter  (rā′dē om′i tər),USA pronunciation n. 
  1. Optics, Physics, OpticsAlso called Crookes radiometer. an instrument for demonstrating the transformation of radiant energy into mechanical work, consisting of an exhausted glass vessel containing vanes that revolve about an axis when exposed to light.
  2. Optics, Physicsan instrument for detecting and measuring small amounts of radiant energy.
  • 1870–75; radio- + -meter
ra•di•o•met•ric  (rā′dē ō me′trik),USA pronunciation adj.  ra′di•om′e•try, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
radiometer / ˌreɪdɪˈɒmɪtə/
  1. any instrument for the detection or measurement of radiant energy
radiometric / ˌreɪdɪəʊˈmɛtrɪk/ˌradiˈometry
'radiometer' also found in these entries (note: many are not synonyms or translations):
Crookes radiometer - radio - spectroradiometer

Forum discussions with the word(s) "radiometer" in the title:


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