meitnerium Hear it!

meitnerium definition

meit·ner·ium (mīt nir′ē əm)

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

Etymology: ModL, after Lise Meitner + -ium

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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