| 释义 |
actino-uranium|ˌæktɪnəʊjʊˈreɪnɪəm|
[f. actino- + uranium.]
The radioactive isotope of uranium of mass 235.
1929Rutherford in Nature 2 Mar. 313/2 The probable mass of this new isotope, which for convenience will be called actino-uranium. 1958H. J. Gray Dict. Physics 14/1 Actino-uranium..is explosive when in sufficiently high concentration, owing to nuclear fission, and was used in the first atomic bomb. |