black body

1. 1.

   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 equilibrium”

   Synonymsblackbodyfull radiator

   Broadernatural object

Questions about black body

What does black body mean?

black body means "a hypothetical object capable of absorbing all the electromagnetic radiation falling on it".

What is another word for black body?

Close synonyms include blackbody, full radiator. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is black body a common word?

black body is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.