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blackbody

[ blak-bod-ee ]

noun

, Physics.
, plural black·bod·ies.
  1. a hypothetical body that absorbs without reflection all of the electromagnetic radiation incident on its surface and then, depending on temperature, emits its own thermal radiation.


blackbody

/ blăkbŏdē /

  1. A theoretically perfect absorber and emitter of every frequency of electromagnetic radiation. The radiation emitted by a blackbody is a function only of its temperature.


blackbody

  1. An object that can absorb and send off radiation with complete efficiency — that is, it reflects ( see reflection ) none of the radiation that falls on it. The higher the object's temperature, the higher the frequency of the radiation it gives off.


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Word History and Origins

Origin of blackbody1

First recorded in 1700–10

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Blackboard Learnblackbody radiation