宇う宙ちゅう帽ぼう

noun

space helmet

Refers to the protective headgear worn by astronauts during space missions.

• 宇う宙ちゅう飛ひ行こう士しは宇う宙ちゅう帽ぼうをかぶって船せん外がい活かつ動どうを行おこなった。

  The astronaut put on a space helmet and performed an extravehicular activity.