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Definitions of
protactinium
:
noun
:
a short-lived
radioactive
metallic
element formed from uranium and disintegrating into
actinium
and then into lead
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Alternative Terms
prokaryote
abiogenesis
origin-of-life
sidney-w-fox
alexander-oparin
liposome
microsphere
lipid-bilayer
cell
endosymbiotic-theory
homeostasis
endosymbiont