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Related Terms:
pluto
plutonian
pluton
plutonic
plutonism
plutogenic
plutonate
transplutonium
nonplutonium
mixed oxide
organoplutonium
diplutonium
plutonous
pu
transuranic
magnox
actinide
eka plutonium
urchin
Definitions:
Noun
plutonium
Pu
atomic number 94
Definition: 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: The transuranic chemical element with atomic number 94 and symbol Pu: a silvery-gray fissile radioactive actinide metal that tarnishes when exposed to air.