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irradiance

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The definition of irradiance is a brightness or gleam of light.

(noun)

An example of irradiance is the flash from a camera lighting up a dark room.

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See irradiance in Webster's New World College Dictionary

noun

an irradiating; radiance
the amount of light or other radiant energy striking a given area of a surface; illumination

Also irradiancy

Related Forms:

irradiant adjective

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irrational number

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