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no·bel·i·um | \ nō-ˈbe-lē-əm 
\
\Definition of nobelium
: a radioactive metallic element produced artificially — see Chemical Elements Table
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nobelium
nounno·bel·i·um | \ nō-ˈbel-ē-əm \
\Medical Definition of nobelium
: a radioactive element produced artificially
—symbol No — see Chemical Elements Table
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The first known use of nobelium was in 1957
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