radioactive series

noun Physics, Chemistry.

a succession of elements initiated in the radioactive decay of a parent, as thorium or uranium, each of which decays into the next until a stable element, usually lead, is produced.

Nearby words

  1. radioactive dating,
  2. radioactive decay,
  3. radioactive fallout,
  4. radioactive iodine,
  5. radioactive isotope,
  6. radioactive tracer,
  7. radioactive waste,
  8. radioactivity,
  9. radioallergosorbent test,
  10. radioautograph

Origin of radioactive series

First recorded in 1920–25

Also called decay series. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for radioactive series

radioactive series


physics a series of nuclides each of which undergoes radioactive decay into the next member of the series, ending with a stable element, usually leadSee uranium series, neptunium series, thorium series, actinium series
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012