uranium series


noun Chemistry.

the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.
Also u·ra·ni·um-ra·di·um se·ries [yoo-rey-nee-uh m-rey-dee-uh m] /yʊˈreɪ ni əmˈreɪ di əm/.

British Dictionary definitions for uranium series

uranium series

noun

physics a radioactive series that starts with uranium-238 and proceeds by radioactive decay to lead-206