/ray'dee oh soh"dee euhm/ , n. Chem.
the radioactive isotope of sodium having an atomic mass of 24 and a half-life of 14.9 hours: used as a tracer in biochemistry.
[ 1930-35; RADIO- + SODIUM ]
/ray'dee oh soh"dee euhm/ , n. Chem.
the radioactive isotope of sodium having an atomic mass of 24 and a half-life of 14.9 hours: used as a tracer in biochemistry.
[ 1930-35; RADIO- + SODIUM ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012