かく分裂 ぶんれつ連鎖 れんさ反応 はんのうだろう
kakubunretsurensahannōdarō

Noun
Da Copula

Expresses probability ("probably…") of 核分裂連鎖反応

1. Likely a nuclear chain reaction.; Possibly a nuclear chain reaction.

Presumptive
Conjecture
Physics