Dictionary

roentgenium

noun roent·gen·i·um \rent-ˈge-nē-əm, rənt-, -ˈje-\

Definition of ROENTGENIUM

:  a short-lived radioactive element produced artificially — see element table

Origin of ROENTGENIUM

New Latin; from the fact that the element was synthesized on the centennial of Röntgen's discovery of X-rays
First Known Use: 2004

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