Similar words: plutonian, pluto, zirconium, pandemonium, plutocrat, plutocracy, hafnium, uranium. Meaning: [pluː'təʊnjəm] 
n. 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.
n. 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. 
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121. First, a specially shaped charge of chemical explosives surrounding a plutonium pit goes off.
122. It threatens to rebuild Yongbyon and start making weapons - grade plutonium again.
123. The escape of neutrons occurs at the exterior of the uranium ( or plutonium ) material.
More similar words: plutonian, pluto, zirconium, pandemonium, plutocrat, plutocracy, hafnium, uranium, cranium, titanium, aluminium, millennium, proscenium, condominium, titanium dioxide, splutter, cut on, put on, futon, crouton, glutton, gluttony, autonomy, put on airs, automaton, gluttonous, tonic, put on the dog, autonomous, put on weight.