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transactinide definition

trans·ac·ti·nide (trans ak′tə nīd′, tranz-)

noun

any of the radioactive chemical elements that have atomic numbers higher than the highest actinide (lawrencium)
also called transactinide element

Related Forms:

  • transactinic trans′·ac·tin′ic (-ak tin′ik) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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