isotope

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈaɪsətəʊp/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/ˈaɪsəˌtoʊp/ ,USA pronunciation: respellingsə tōp′)


WordReference Random House Learner's Dictionary of American English © 2020
i•so•tope /ˈaɪsəˌtoʊp/USA pronunciation   n. [countable]
  1. Chemistryone of two or more forms of a chemical element having the same number of protons, or the same atomic number, but having different numbers of neutrons, or different atomic weights.
i•so•top•ic /ˌaɪsəˈtɑpɪk/USA pronunciation  adj. 

WordReference Random House Unabridged Dictionary of American English © 2020
i•so•tope  sə tōp′),USA pronunciation n. [Chem.]
  1. Chemistryany of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights. There are 275 isotopes of the 81 stable elements, in addition to over 800 radioactive isotopes, and every element has known isotopic forms. Isotopes of a single element possess almost identical properties.
i•so•top•ic  sə tōp′),USA pronunciation adj.  i′so•topi•cal•ly, adv. 
  • Greek tópos place
  • 1910–15; iso- + -tope

Collins Concise English Dictionary © HarperCollins Publishers::
isotope /ˈaɪsəˌtəʊp/ n
  1. one of two or more atoms with the same atomic number that contain different numbers of neutrons
Etymology: 20th Century: from iso- + Greek topos place

isotopic /ˌaɪsəˈtɒpɪk/ adj ˌisoˈtopically adv isotopy /aɪˈsɒtəpɪ/ n
'isotope' also found in these entries (note: many are not synonyms or translations):
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