释义 |
phosphorus 32 \-ˌthərd.ēˈtü\ noun : a heavy radioactive isotope of phosphorus having a mass number of 32 and a half-life of 14.3 days that is produced in nuclear reactors and used chiefly in tracer studies (as in biology and in chemical analysis) and in medical diagnosis (as in location of tumors) and therapy (as of polycythemia vera) — symbol P32 or 32P; called also radiophosphorus |