roent|gen|ium

roent|gen|ium «rehnt _GEHN ee uhm», noun.

a metallic, radioactive chemical element. It has a very short half-life and is produced by bombarding bismuth with nickel in high-energy atomic collisions.

╂[< New Latin roentgenium < Wilhelm C. Roentgen, 1845-1923, German physicist who discovered X-rays]