A reactor that both produces and consumes fissionable fuel, especially one that creates more fuel than it consumes. The new fissionable material is created by a process known as breeding, in which n [..]

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.

A nuclear reactor that produces fuel by bombarding isotopes of uranium and thorium with high-energy neutrons that convert inert atoms to fissionable ones. These reactors are inherently less stable and more dangerous than normal nuclear reactors. brittle stars

see Fast Breeder Reactor

A nuclear reactor that produces more fuel than it consumes. This kind of reactor is used mainly to produce plutonium.

A nuclear reactor in which a fissionable material is produced at a greater rate than the fuel is consumed.

While a conventional nuclear generating plant (called a converter or burner) gets its heat by splitting atoms of uranium-235, a breeder reactor (also called a fast-breeder) both burns and manufactures plutonium at the same time. A breeder reactor actually creates more fuel than it burns in creating heat. Proponents say a commercial breeder reactor, [..]

The conventional, nuclear generating plant which produces heat by splitting atoms of uranium-235. A breeder reactor uses plutonium and produces a different form of plutonium in the process. A commercial breeder reactor, while providing heat to generate electricity, will make enough different plutonium to refuel itself and another breeder reactor ev [..]

A nuclear reactor that produces more fuel than it consumes. This kind of reactor is used mainly to produce plutonium.

A nuclear reactor which produces the same kind of fissile material as it burns. For example, a reactor using plutonium as a fuel can produce more plutonium than it uses by conversion of Uranium-238.