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transactinide

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trans⋅ac⋅ti⋅nide

[trans-ak-tuh-nahyd, tranz-]
–adjective Chemistry.
noting or pertaining to elements having higher atomic weights than those of the actinide series.

Origin:
1965–70; trans- + actinide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To transactinide
trans·ac·ti·nide   (trā-sāk'tə-nīd', -zāk'-)   
adj.  Of or belonging to the series of elements whose atomic numbers are greater than 103.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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