blackbody

[blak-bod-ee] /ˈblækˈbɒd i/
noun, plural blackbodies. Physics.
1.
a hypothetical body that absorbs without reflection all of the electromagnetic radiation incident on its surface.
Also called perfect radiator.
Origin
1700-10
Examples from the web for blackbody
  • We know that blackbody radiation produces an intensity-frequency curve that is dependent on temperature.
  • Infrared cryogenic blackbody broadband calibration.
  • Single ions will not have darkness or coloration with which to efficiently emit blackbody radiation.
blackbody in Science
blackbody
  (blāk'bŏd'ē)   
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 in Culture

blackbody definition


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.