irradiance

== English == === Etymology === irradiant +‎ -ance === Pronunciation === IPA(key): /ɪˈɹeɪ.di.əns/ === Noun === irradiance (countable and uncountable, plural irradiances) The act of irradiating; emission of rays of light. That which irradiates or is irradiated; lustre; splendour; brilliancy. (physics) The radiant power received by unit area of surface. 1959, United States. National Aeronautics and Space Administration, NASA Technical Note (issues 3641-3650, page 15) The geometry of the cone θ and the irradiance at the image of the carbon block were used to determine the absolute steradiancy of the energy in the cone θ as a radiometer calibration value. ==== Related terms ==== radiance ==== Translations ==== === Anagrams === carinderia