Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
uranium series[yə′rā·nē·əm ‚sir·ēz]
The series of nuclides resulting from the decay of uranium-238, including isotopes of uranium, thorium, protactinium, radium, radon, pdonium, lead, bismuth, and thallium with mass number 4 n +2, where n is an integer. Also known as uranium decay series; uranium-radium series.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.