noun Etymology: International Scientific Vocabulary Date: 1945 any of the series of elements with increasing atomic numbers that begins with actinium or thorium and ends with lawrencium — see periodic table table

New Collegiate Dictionary. 2001.

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  • actinide — ACTINÍDE s.f. Grup de 14 elemente din sistemul periodic al lui Mendeleev, situate după actiniu, având proprietăţi asemănătoare cu ale acestuia. – Din fr. actinides, germ. Aktiniden. Trimis de ana zecheru, 13.09.2007. Sursa: DEX 98  actiníde s. n …   Dicționar Român

  • actinide — [ aktinid ] n. m. • apr. 1950; gr. aktis, aktinos « rayon » et ide ♦ Phys. Élément radioactif dont le numéro atomique est compris entre 89 et 103. Les quatre premiers actinides, l actinium, le thorium, le protactinium, l uranium, existent à l… …   Encyclopédie Universelle

  • actinide — [ak′tə nīd΄] n. [< ACTIN(IUM) + IDE] any of the elements in the series (actinide series) of radioactive, metallic chemical elements from element 89 (actinium) through element 103 (lawrencium): actinides resemble lanthanides in electronic… …   English World dictionary

  • Actinide — The atomic bomb dropped on Nagasaki had a plutonium charge.[1] The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium thro …   Wikipedia

  • Actinide —     …   Deutsch Wikipedia

  • Actinide — La série chimique des actinides comprend les éléments chimiques du tableau périodique se situant entre l actinium et le lawrencium, possédant donc un numéro atomique entre 89 et 103 inclus. Les actinides sont tous des éléments radioactifs et… …   Wikipédia en Français

  • actinide — /ak teuh nuyd /, n. Chem. any element of the actinide series. [1940 45; ACTIN + IDE, on the model of LANTHANIDE] * * * Any of the series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103) …   Universalium

  • actiníde — s. n., pl. actiníde …   Romanian orthography

  • actinide — ac•ti•nide [[t]ˈæk təˌnaɪd[/t]] n. chem. any element of the actinide series • Etymology: 1945; actin ( ium) + ide, on the model of lanthanide …   From formal English to slang

  • actinide — aktinoidas statusas T sritis fizika atitikmenys: angl. actinoid vok. Actinoid, n rus. актиноид, m pranc. actinide, m …   Fizikos terminų žodynas

  • actinide — n. (also actinoid) Chem. any of the series of 15 radioactive elements having increasing atomic numbers from actinium to lawrencium. Phrases and idioms: actinide series this series of elements. Etymology: ACTINIUM + IDE as in lanthanide …   Useful english dictionary

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