caesium-137
Noun. A radioactive isotope of caesium, (nuclide, 137) , having 55 protons and 82 neutrons and which is formed mainly as a fission product by nuclear fission.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.