actinide

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Related to Actinide element: Actinoid series elements

ac·ti·nide

 (ăk′tə-nīd′)
n.
Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium). Also called actinoid.

actinide

(ˈæktɪˌnaɪd)
n
(Elements & Compounds) a member of the actinide series. Also called: actinon
[C19: from actino- + -ide]

ac•ti•nide

(ˈæk təˌnaɪd)

n.
any element of the actinide series.
[1945; actin (ium) + -ide, on the model of lanthanide]

ac·ti·nide

(ăk′tə-nīd′)
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinide - any of a series of radioactive elements with atomic numbers 89 through 103actinide - any of a series of radioactive elements with atomic numbers 89 through 103
group, grouping - any number of entities (members) considered as a unit
Translations
Actinoid
actinide
aktinid
References in periodicals archive ?
The microorganisms reduce the actinide element to form a precipitate, which contains a greater proportion of the lighter isotope relative to the heavier isotope than the starting material.
The focus of Veliscek-Carolans research is to treat solutions of spent nuclear fuel and recycle actinide elements, such as uranium, that can be re-used as fuel.
The open f-shells found in lanthanide and actinide elements make the electronic structure of f-element unusually complex.