English dictionary



Hint: Question mark (?) is a wildcard. Question mark substitutes one character.

English noun: plutonium

1. plutonium (substance) 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


Synonymsatomic number 94, Pu


Broader (hypernym)chemical element, element


Narrower (hyponym)plutonium 239









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk