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transactinide element
Variant of transactinide
noun
any of the radioactive chemical elements that have atomic numbers higher than the highest actinide (lawrencium)
also called transactinide element
Related Forms:
- transactinic adjective
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.