pellet

中文： 小球、丸、弹丸

1. A small, compressed, hard chunk of matter. · a pellet of wood, paper, or ore
2. A lead projectile used as ammunition in rifled air guns.
3. Compressed byproduct of digestion regurgitated by owls and many other birds of prey, which serves as a waste disposal mechanism for indigestible parts of food, such as fur and bones.
4. A roundel sable (black circular spot).
5. One of the short conductive tubes in a Pelletron particle accelerator.

复数 pellets