irradiance

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


WordReference Random House Unabridged Dictionary of American English © 2025
ir•ra•di•ance  (i rā′dē əns),USA pronunciation n. [Physics.]
  1. Physicsincident flux of radiant energy per unit area.
Also, irradiation. 
  • ir-1 + radiance 1660–70

Collins Concise English Dictionary © HarperCollins Publishers::
irradiance / ɪˈreɪdɪəns/, irradiancy / ɪˈreɪdɪənsɪ/
  1. the radiant flux incident on unit area of a surface. It is measured in watts per square metre
    Also called: irradiation
    Compare illuminance
'irradiance' also found in these entries (note: many are not synonyms or translations):
illuminance - irradiation

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


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