Definitions for "Nuclear fuel"
Basic chain-reacting material, including both fissile and fertile materials. Commonly used nuclear fuels are natural uranium, and low-enriched uranium; high-enriched uranium and plutonium are used in some reactors.
Pellets of concentrated uranium oxide or a comparable radioactive material that can provide energy in a nuclear reactor.
Material containing fissile nuclides which, when placed in a reactor, enables a self-sustaining nuclear chain reaction.