a synthetic element produced in small quantities by high-energy ion bombardment. Symbol: Mt; atomic no: 109
Word origin
C20: named after Lise Meitner
meitnerium in American English
(maɪtˈnɪriəm)
noun
a radioactive chemical element with a very short half-life: a transactinide produced by bombarding bismuth with high-energy nuclear particles: symbol, Mt; at. no., 109