赤せき道どう無む風ふう帯たい

noun

doldrums; equatorial calms

Meteorological term for the low-pressure zone near the equator with light, variable winds. Often used in nautical and climate contexts.

• 帆はん船せんは赤せき道どう無む風ふう帯たいに入はいって、何なん日にちも進すすめなかった。

  The sailing ship entered the doldrums and couldn't make headway for days.

• 赤せき道どう無む風ふう帯たいは、熱ねっ帯たい収しゅう束そく帯たいとも呼よばれる。

  The doldrums are also called the Intertropical Convergence Zone.