uranium 235: Meaning and Definition of

uranium 235

Pronunciation: [key]
— Chem. Chem.
  1. the radioactive uranium isotope having a mass number of 235, comprising 0.715 percent of natural uranium. When bombarded with neutrons it undergoes fission with the release of energy. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.