Subatomic particle and Subatomic

Subatomic particle noun - A body having finite mass and internal structure but negligible dimensions.

Subatomic and subatomic particle are semantically related. In some cases you can replace term "Subatomic" with "Subatomic particle", this terms are similar.

Subatomic adjective - Of or relating to constituents of the atom or forces within the atom.

Subatomic particle and subatomic are semantically related. You can use "Subatomic particle" instead a noun "Subatomic".