あやま訂正 ていせい符号 ふごうでしょう
ayamariteiseifugōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 誤り訂正符号

1. Probably a correction mark.; Probably an error correction symbol.

Polite
Presumptive
Conjecture
Computing