Dictionary

irradiance en · NOUN

Pronunciation

• /ɪˈɹeɪ.di.əns/

Etymology

Etymology tree English irradiant Latin -ns Latin -āns Latin -ia Latin -āntia Old French -ancebor. Middle English -aunce English -ance English irradiance From irradiant + -ance.

Meanings

1. (countable, uncountable) The act of irradiating; emission of rays of light.
2. (countable, uncountable) That which irradiates or is irradiated; lustre; splendour; brilliancy.
3. (countable, uncountable) The radiant power received by unit area of surface.
   • 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. 1959, United States. National Aeronautics and Space Administration, NASA Technical Note (issues 3641-3650, page 15)

Forms

Relateds

radiance

Translations (3)

fi säteilytysvoimakkuus (physics: Radiant power received by unit area of surface) · es irradiancia (physics: Radiant power received by unit area of surface) · de Bestrahlungsstärke (physics: Radiant power received by unit area of surface)