ISOTOPE


Meaning of ISOTOPE in English

i ‧ so ‧ tope /ˈaɪsətəʊp $ -toʊp/ BrE AmE noun [countable] technical

[ Date: 1900-2000 ; Origin: iso- + Greek topos 'place' ]

one of the possible different forms of an atom of a particular ↑ element (=simple chemical substance)

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.