protactinium
noun
prot·ac·tin·i·um
| \ ˌprō-ˌtak-ˈti-nē-əm
\
\
Definition of protactinium
: a shiny radioactive metallic element of relatively short life — see Chemical Elements Table
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More Definitions for protactinium
protactinium
noun
prot·ac·tin·i·um
| \ ˌprōt-ˌak-ˈtin-ē-əm
\
\
variants:
also protoactinium \ ˌprōt-ō-
\
\
Medical Definition of protactinium
: a shiny metallic radioelement of relatively short life
—symbol Pa
— see Chemical Elements Table