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actinide
(redirected from Actinides)

    Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.04 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).
[actin(ium) + -ide.]
actinide  (kt-nd)
Any of a series of chemically similar metallic elements with atomic numbers ranging from 89 (actinium) to 103 (lawrencium). All of these elements are radioactive, and two of the elements, uranium and plutonium, are used to generate nuclear energy. See Periodic Table.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.actinideactinide - any of a series of radioactive elements with atomic numbers 89 through 103
actinoid, actinon
group, grouping - any number of entities (members) considered as a unit
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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
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
Argonne's only Idaho nuclear program slated to survive is a facility being renovated to produce fuel rods containing actinides, which would test whether these heavy elements from spent fuel could be "burned" to yield power (SN: 3/20/93, p.
Fed's R&D goals change, no dollar gains by Raloff, Janet / Science News
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