fang

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

• noun Any of the hollow or grooved teeth of a venomous snake with which it injects its poison.
• noun Any of the canine teeth of a carnivorous animal, such as a dog or wolf, with which it seizes and tears its prey.
• noun A long, sharp, pointed tooth, especially a canine tooth.
• noun The root of a tooth or a pronglike division of such a root.
• noun A fanglike structure, especially a chelicera of a venomous spider.

from The Century Dictionary.

• To catch; seize; grip; clutch; lay hold of.
• To take; receive with assent, accept.
• To receive with hospitality, as a guest; welcome.
• To receive (a thing given or imposed).
• To receive or adopt into spiritual relation, as in baptism; be godfather or godmother to.
• To seize; lay hold.
• noun A valve in a pump; the water-seal of a pump.
• noun A grasping; capture; the act or power of seizing; hold.
• noun That which is seized or carried off; booty; spoils; stolen goods.
• noun Any projection, catch, shoot, or other thing by which hold is taken; a prehensile part or organ.
• noun Specifically — A claw or talon; a falcula.
• noun A fin.
• noun A long, sharp tooth, as an organ of prehension, as the canine tooth of a dog, or the tusk of a boar or an elephant.
• noun The socketed part of a tooth, as that by which the tooth holds on to the jaw. There may be one or several fangs.
• noun The poison-or venom-tooth of a serpent, through which venom is injected into a wound made by it. See venom, and cut under poison-fang.
• noun The pointed and curved second joint of the falx or chelicera of a spider, pierced at the tip by the opening of the poison-duct. The term is sometimes applied to the whole chelicera. See cuts under chelicera and falx.
• noun The tang of a tool.
• noun Any projecting prong in a lock or a bolt.
• noun In mining: A channel cut in the rock, or a pipe of wood, for conveying air.
• noun plural Cage-shuts.

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

• transitive verb obsolete To catch; to seize, as with the teeth; to lay hold of; to gripe; to clutch.
• transitive verb To enable to catch or tear; to furnish with fangs.
• noun (Zoöl.) The tusk of an animal, by which the prey is seized and held or torn; a long pointed tooth; esp., one of the usually erectile, venomous teeth of serpents. Also, one of the falcers of a spider.
• noun Any shoot or other thing by which hold is taken.
• noun (Anat.) The root, or one of the branches of the root, of a tooth. See Tooth.
• noun (Mining) A niche in the side of an adit or shaft, for an air course.
• noun (Mech.) A projecting tooth or prong, as in a part of a lock, or the plate of a belt clamp, or the end of a tool, as a chisel, where it enters the handle.
• noun The valve of a pump box.
• noun A bend or loop of a rope.
• noun fast entangled.
• noun said of a pump when the water has gone out.
• noun [Scot.] to supply it with the water necessary to make it operate.

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

• noun A long, pointed canine tooth used for biting and tearing flesh or (in snakes) for injecting venom.
• verb rare to strike or attack with the fangs
• verb transitive To catch, capture; seize; grip; clutch; lay hold of.
• verb transitive To take; receive with assent; accept.
• verb transitive, obsolete To receive with hospitality; welcome.
• verb transitive, obsolete To receive.
• verb transitive, dialectal To receive or adopt into spiritual relation, as in baptism; be godfather or godmother to.
• noun Scotland A grasping; capture; the act or power of seizing; hold.
• noun That which is seized or carried off; booty; spoils; stolen goods.
• noun Any projection, catch, shoot, or other thing by which hold is taken; a prehensile part or organ.
• noun mining A channel cut in the rock, or a pipe of wood, used for conveying air.