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element 112

noun, Chemistry, Physics.
Formerly ununbium.

copernicium

[koh-per-nis-ee-uh m] /ˌkoʊ pərˈnɪs i əm/
noun, Chemistry, Physics.
1.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Cn; atomic number: 112.
Formerly unubium, element 112.
Origin of copernicium
named after Polish astronomer Nicolaus Copernicus; see -ium

ununbium

[uh-nuhn-bee-uh m] /əˈnʌn bi əm/
noun, Chemistry, Physics.
1.
former name of copernicium. Symbol: Uub.
Also called element 112.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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element 112 in Science
element 112  
Symbol Uub
An artificially produced radioactive element whose isotope has a mass number of 277 and a half-life of 280 milliseconds. Atomic number 112. Also called ununbium. See Periodic Table.
ununbium
  (ə-nŭn'bē-əm)   
See element 112.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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