黒こく体たい

noun

black body

Physics term for an idealized object that absorbs all incident electromagnetic radiation. Used in contexts such as thermal radiation and quantum mechanics.

• 黒こく体たいはすべての波は長ちょうの放ほう射しゃを完かん全ぜんに吸きゅう収しゅうする理り想そう的てきな物ぶっ体たいである。

  A black body is an idealized object that perfectly absorbs radiation of all wavelengths.