Chem.
the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.
Also, uranium-radium series /yoo ray"nee euhm ray"dee euhm/ .
Chem.
the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.
Also, uranium-radium series /yoo ray"nee euhm ray"dee euhm/ .
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012