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actinide

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
ac·ti·nide (kt-nd)
n.
Any of a series of chemically similar radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium).
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The emphasis of this announcement is on the ions, complexes, and organometallic compounds of the transition metals known as lanthanides and actinides, post-transition metals, and metalloid elements.
Metals in medicine by Environmental Health Perspectives
Vaseline glass is mildly radioactive, a property shared by all of the actinide elements, but the mystery element was banned for use as a coloring agent in the 1940s.
Name that element! It's the world's most powerful element, fueling ... by Dyer, Nicole / Science World
Wong synthesized the first known lanthanide and actinide porphyrin complexes.
Lumenon Innovative Lightwave Technology, Inc. Leading Materials ... by Business Wire
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