ununnilium Hear it!

ununnilium definition

un·un·nil·ium (un′ə nil′ē əm)

noun

element 110: symbol, Uun: a temporary name proposed for use until an official name is adopted

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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