ちょうアクチノイド元素 げんそでしょう
chōakuchinoidogensodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 超アクチノイド元素

1. Superactinide element, likely.; Probably a superactinide element.

Polite
Presumptive
Conjecture
Chemistry