放ほう射しゃ熱ねつ

noun

radiant heat

Technical term for heat transferred via electromagnetic radiation, as from the sun or a heater.

• 太たい陽ようからの放ほう射しゃ熱ねつで地じ面めんが温あたたまる。

  The ground is warmed by radiant heat from the sun.

• ストーブの放ほう射しゃ熱ねつが部屋へや全ぜん体たいに広ひろがる。

  The radiant heat from the stove spreads throughout the room.