(n) a hypothetical object capable of absorbing all the electromagnetic radiation falling on it, Syn.full radiator, blackbody, Example: a black body maintained at a constant temperature is a full radiator at that temperature because the radiation reaching and leaving it must be in equilibrium
(n) the electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black body depends only on temperature and is determined by Planck's radiation law, Syn.blackbody radiation
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