noun
fuel rod
Technical term for a rod containing nuclear fuel, used in nuclear reactors.
原子炉には多数の燃料棒が装荷されている。
Many fuel rods are loaded into the nuclear reactor.
A fuel assembly is a bundle of fuel rods; 燃料棒 refers to a single rod.
Compound of 燃料 (fuel) and 棒 (rod, bar).