被爆者

noun

a person who was bombed (attacked by a bomb or bombs) / (specifically) a victim of the atomic bombings of Hiroshima or Nagasaki during World War II

彼の祖父は広島の被爆者だった。

His grandfather was a survivor of the Hiroshima bombing.

意味（1）

a person who was bombed (attacked by a bomb or bombs)

意味（2）

(specifically) a victim of the atomic bombings of Hiroshima or Nagasaki during World War II