What does plutonium mean?
A radioactive, metallic chemical element with the symbol Pu and atomic number 94. It is a highly toxic, silvery-white metal that is highly reactive and has a number of industrial and military applications.
Example
"The scientists were working with a small sample of plutonium in the laboratory."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.