| 释义 |
iso·topeBrE /ˈaɪsətəʊp/NAmE /ˈaɪsətoʊp/ noun (physics 物理, chemistry 化学) one of two or more forms of a chemical element which have the same number of protons but a different number of neutrons in their atoms. They have different physical properties (= characteristics) but the same chemical ones 同位素◆radioactive isotopes 放射性同位素◆the many isotopes of carbon 碳的诸多同位素 |