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superimpose
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superheavy
su·per·heav·y [ spər hévvee ]


adjective 
Definition:
 
with many protons in nucleus: describes a chemical element having more than 110 protons in the nucleus, and, according to theoretical studies, likely to have special stability
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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