Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The
systematic element name for the (as yet unconfirmed) chemical element withatomic number 115 (symbol Uup)
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 ununpentium + Latin ūnus + Greek pent-, pent- + –ium (in reference to its atomic number).]
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Examples
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oroboros commented on the word ununpentium
Uup.
November 26, 2007