noun
double electron capture
A nuclear physics term for a rare decay mode where two orbital electrons are captured by the nucleus.
二重電子捕獲は非常に稀な原子核崩壊モードである。
Double electron capture is a very rare nuclear decay mode.
Compound of 二重 (double) + 電子 (electron) + 捕獲 (capture), a calque of the English term.