pellet

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A small, solid or densely packed ball or mass, as of food, wax, or medicine.
2. n. A bullet or piece of small shot.
3. n. A stone ball, used as a catapult missile or a primitive cannonball.
4. v. To make or form into pellets.
5. v. To strike with pellets.

Century Dictionary and Cyclopedia

1. n. A little ball, as of wax, dough, paper, lead (a shot), etc.: as, homeopathic pellets.
2. n. A stone ball formerly used as a missile, particularly from a sling; also, a cannon-ball; a bullet.
3. n. In heraldry, a roundel sable: same as ogress.
4. n. In numismatics, a small pellet-shaped boss. T. Erans.
5. n. In decorative art, a small rounded projection, usually one of many. Compare purl.
6. To form into pellets or little balls.
7. n. The indigestible part of the food of hawks and owls, consisting of bones, hair, feathers, etc., which is cast up or regurgitated in the shape of elongated balls.

Wiktionary

1. n. Usually a small, compressed, symmetrical and hard chunk of matter. Ex: Wood pellet, ore pellet, etc.
2. n. A lead projectile used as ammunition in rifled air guns.
3. n. Compressed byproduct of digestion regurgitated by owls. Serves as a waste disposal mechanism for that species, as it can't excrete feces.
4. v. To form into pellets
5. v. To strike with pellets

GNU Webster's 1913

1. n. A little ball.
2. n. A bullet; a ball for firearms.
3. v. To form into small balls; to pelletize.

WordNet 3.0

1. n. a solid missile discharged from a firearm
2. n. a small sphere