- 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 hence do not have blackbody surface properties.
Mechanics glossary. 2013.
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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 — 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 — n. object which absorbs all wavelengths of electromagnetic radiation and is also the most efficient emitter of all wavelengths (Physics) … English contemporary dictionary
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