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Pluto monkey
Plutocracy
Plutocrat
Plutocratic
plutocratical
Plutology
pluton
Plutonian
Plutonic
Plutonic action
plutonic rock
Plutonic rocks
Plutonic theory
Plutonism
Plutonist
plutonium
-- plutonium 239 --
plutonium bomb
plutonium pit
plutonium trigger
Plutus
Pluvial
Pluvialis
Pluviameter
Pluviametrical
Pluvian
Pluvianus
Pluvianus aegyptius
Pluviograph
Pluviography
Pluviometer
Pluviometrical
Pluviometry
plutonium 239
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Noun
1.
plutonium 239
-
a
highly
fissionable
isotope
of
plutonium
that
is
used
in
atomic
weapons
and
as
a
reactor
fuel
;
produced
by
irradiating
uranium
238
with
slow
electrons
atomic
number
94,
plutonium
,
Pu
,
weapon-grade
plutonium
,
weapons
plutonium
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