roentgenium

roent gen i um |rentˈgenēəm, rənt -rɛntˈɡɛniəm rentˈɡiːniəm | ▶noun the chemical element of atomic number 111, a radioactive element produced artificially. (Symbol: Rg ) ORIGIN 21st cent.: named after Wilhelm Conrad Röntgen (see Röntgen, Wilhelm Conrad ).

roentgenium

roentgenium |rʌntˈdʒɛnɪum, rəːnt -, rɒnt -, -ˈgɛn -| ▶noun the chemical element of atomic number 111, a radioactive element produced artificially. (Symbol: Rg ) ORIGIN early 21st cent.: named after Wilhelm Conrad Röntgen (see roentgen ).