赤せき外がい放ほう射しゃ

noun

infrared radiation

Technical term used in physics, astronomy, and engineering. Refers to electromagnetic radiation with wavelengths longer than visible light.

• 赤せき外がい放ほう射しゃは熱ねつとして感かんじられる。

  Infrared radiation can be felt as heat.

• このカメラは赤せき外がい放ほう射しゃを検けん出しゅつできる。

  This camera can detect infrared radiation.