sentences: radioactive give is used to determine the young of pressure
docs: radioactive_iodine_test is diagnostic_test. radioactive_isotope is radioactive_substance. radioactive_iodine_uptake_test is radioactive_iodine_test. nuclear_waste is radioactive_substance. radioactive_isotope is isotope. radioactive_waste is radioactive_material. radioactive_dating is measurement. radiation_pressure is pressure. astatine is radioactive_substance. radioactive_iodine_excretion_test is radioactive_iodine_test.