Nuclear weapon and Plutonium bomb

Nuclear weapon noun - A weapon of mass destruction whose explosive power derives from a nuclear reaction.

Plutonium bomb and nuclear weapon are semantically related In some cases you can use "Plutonium bomb" instead a noun phrase "Nuclear weapon".

Plutonium bomb noun - A nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239).

Nuclear weapon and plutonium bomb are semantically related in nuclear bomb topic. You can use "Nuclear weapon" instead a noun phrase "Plutonium bomb".