transactinide[trans ak′tə nīd′, tranz-]
transactinide definition by Webster's New World
any of the radioactive chemical elements that have atomic numbers higher than the highest actinide (lawrencium)
also called transactinide element
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- transactinic adjective
transactinide definition by American Heritage Dictionary
Of or belonging to the series of elements whose atomic numbers are greater than 103.