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lanthanide definition

lan·tha·nide (lan′t̸hə nīd′)

noun

any of the rare-earth elements (lanthanide series)
sometimes called lanthanoid lan′·tha·noid′ (-no̵id′) or lanthanon lan′·tha·non′ (-nän′)

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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