n. object which absorbs all wavelengths of electromagnetic radiation and is also the most efficient emitter of all wavelengths (Physics)

English contemporary dictionary. 2014.

Look at other dictionaries:

  • blackbody — [blak′bäd′ē] n. an ideal surface or body that can absorb completely all the radiation striking it …   English World dictionary

  • blackbody — /blak bod ee/, n., pl. blackbodies. Physics. a hypothetical body that absorbs without reflection all of the electromagnetic radiation incident on its surface. Also called perfect radiator. [1700 10] * * * Theoretical surface that absorbs all… …   Universalium

  • blackbody — a body with a surface emissivity of 1. Such a body will emit all of the thermal radiation it can (as described by theory), and will absorb 100% of the thermal radiation striking it. Most physical objects have surface emissivities less than 1 and… …   Mechanics glossary

  • blackbody — noun Date: 1710 an ideal body or surface that completely absorbs all radiant energy falling upon it with no reflection and that radiates at all frequencies with a spectral energy distribution dependent on its absolute temperature …   New Collegiate Dictionary

  • blackbody — noun a theoretical body, approximated by a hole in a hollow black sphere, that absorbs all incident electromagnetic radiation and reflects none; it has a characteristic emission …   Wiktionary

  • blackbody — Смотри абсолютно черное тело (а. ч. т.) …   Энциклопедический словарь по металлургии

  • Blackbody —   An ideal substance that absorbs all radiation falling on it, and reflecting nothing …   Energy terms

  • blackbody — black•bod•y [[t]ˈblækˈbɒd i[/t]] n. pl. bod•ies. phs a hypothetical body that absorbs without reflection all of the electromagnetic radiation incident on its surface • Etymology: 1700–10 …   From formal English to slang

  • Blackbody —    A perfect radiator which absorbs and re emits all radiation that strikes it …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • blackbody — noun a hypothetical object capable of absorbing all the electromagnetic radiation falling on it 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… …   Useful english dictionary