空くう気き砲ほう

noun

air cannon (toy)

A toy that shoots a burst of air, often producing a visible smoke ring or a loud pop. Commonly used in science demonstrations and as a novelty item.

• 子こ供どもたちは空くう気き砲ほうで遊あそんでいる。

  The children are playing with an air cannon.

• 科か学がくの授じゅ業ぎょうで空くう気き砲ほうを作つくった。

  We made an air cannon in science class.