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English Fox - English Dictionary
Meaning of
protactinium
in English
protactinium
us
//ˌproʊtækˈtɪniəm//
uk
//ˌproʊtæktɪˈniːəmiː//
#uncommon
Definitions
Noun
a
silvery-gray
actinide
metal
(
atomic
number
91
)
Protactinium
is
a
highly
radioactive
metal
element
.
