This is the 18485th most frequent Russian word.
ядерному
"Ядерному" means "nuclear" (dative case, singular).
In this context, 'ядерному' relates to 'nuclear', indicating characteristics or association with nuclear substances.
Ядерному раствору нужно уделить особое внимание.
The nuclear solution needs special attention.
Here, 'ядерному' refers to 'nuclear weapons', illustrating the technological application related to nuclear arms.
Мы применили ядерному оружию современные технологии.
We applied modern technologies to nuclear weapons.
In this instance, 'ядерному' is associated with 'nuclear reactor', describing its necessity for operational safety features.