Synonyms of plutonium

Noun

1. plutonium, Pu, atomic number 94, chemical element, element

usage: a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239

Definition and meaning of plutonium (Dictionary)