Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The
systematic element name for the (as yet unconfirmed) chemical element withatomic number 113 (symbol Uut)
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a radioactive transuranic element
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[Latin ūnus, one; see oi-no- in Indo-European roots + Latin ūnus + Latin and Greek tri-, tri- + –ium (in reference to its atomic number).]
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Examples
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Only eight atoms of ununtrium have been observed to date.
The Periodic Table of Science Bloggers | Universe Today 2010
oroboros commented on the word ununtrium
Uut.
November 26, 2007