Atomic pile and Fission reactor

Atomic pile noun - A nuclear reactor that uses controlled nuclear fission to generate energy.

Fission reactor and atomic pile are semantically related. in nuclear reactor topic. In some cases you can use "Fission reactor" instead a noun phrase "Atomic pile".

Atomic pile and fission reactor are semantically related. Sometimes you can replace phrase "Atomic pile" with "Fission reactor", this phrases are similar.