鉄てっ扇せん

noun

iron-ribbed fan

A folding fan with iron ribs, used historically as a defensive weapon or for signaling. Often associated with samurai and martial arts.

• 時じ代だい劇げきで、侍さむらいが鉄てっ扇せんを懐ふところに忍しのばせている場ば面めんを見みた。

  In a period drama, I saw a scene where a samurai kept an iron-ribbed fan hidden in his breast pocket.