A single tube of cladding filled with uranium fuel pellets.
A cylindrical rod, 12 feet long, containing uranium fuel pellets.
A long slender tube that holds fissionable material (fuel) for nuclear reactor use. Fuel rods are assembled into bundles called fuel elements or assemblies, which are loaded individually into the reactor core.
A long, slender tube that holds the fuel pellets; fuel rods are assembled into bundles called fuel elements or fuel assemblies that are loaded individually into the reactor core.