A nuclear reactor in which 238U or 232Th, which are not easily fissionable, absorb neutrons to become atoms of 239Pu or 236U, which can later be used as fuels in fission reactors. Breeder technology is not yet feasible
Iowa State University, College of Liberal Arts and Sciences, Department of Geological and Atmospheric Sciences, Glossary of Geologic Terms (based on the glossary in Earth: An Introduction to Geologic Change, by S. Judson and S.M. Richardson, Englewood Cliffs, NJ, Prentice Hall, 1995), Iowa, USA 2004. http://www.ge-at.iastate.edu/courses/Geol_100/old_ files/glossary.v2.html, (ND/ Geol - Amer) {111}