pellet

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A small, solid or densely packed ball or mass, as of food, wax, or medicine.
• noun A bullet or piece of small shot.
• noun A stone ball, used as a catapult missile or a primitive cannonball.
• transitive verb To make or form into pellets.
• transitive verb To strike with pellets.

from The Century Dictionary.

• noun 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.
• To form into pellets or little balls.
• noun A little ball, as of wax, dough, paper, lead (a shot), etc.: as, homeopathic pellets.
• noun A stone ball formerly used as a missile, particularly from a sling; also, a cannon-ball; a bullet.
• noun In heraldry, a roundel sable: same as ogress.
• noun In numismatics, a small pellet-shaped boss. T. Erans.
• noun In decorative art, a small rounded projection, usually one of many. Compare purl.

from the GNU version of the Collaborative International Dictionary of English.

• noun A little ball.
• noun obsolete A bullet; a ball for firearms.
• noun a gun that fires small pellets, less than 3 mm diameter, usually made of metal.
• noun (Arch.) a narrow band ornamented with smalt, flat disks.
• transitive verb obsolete To form into small balls; to pelletize.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Usually a small, compressed, symmetrical and hard chunk of matter. Ex: Wood pellet, ore pellet, etc.
• noun A lead projectile used as ammunition in rifled air guns.
• noun Compressed byproduct of digestion regurgitated by owls. Serves as a waste disposal mechanism for indigestible parts of food, such as fur and bones.
• verb To form into pellets
• verb To strike with pellets

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a solid missile discharged from a firearm
• noun a small sphere