• WordNet 3.6
    • n blowgun a tube through which darts can be shot by blowing
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Webster's Revised Unabridged Dictionary
    • n Blowgun A tube, as of cane or reed, sometimes twelve feet long, through which an arrow (sometimes poisoned) or other projectile may be impelled by the force of the breath. It is a weapon much used by certain Indians of America and the West Indies; -- called also blowpipe, and blowtube. See Sumpitan.
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Century Dictionary and Cyclopedia
    • n blowgun A pipe or tube through which missiles are blown by the breath. Those used by certain Indians of South America are of wood, from 7 to 10 feet long, with a bore not larger than the little finger; through them are blown poisoned arrows made of split cane or other light material, from a foot to 15 inches in length, and wound at the butt with some fibrous material so as to fit the bore of the blow-gun. A similar blow-gun is in use among the Dyaks of Borneo. Also called blow-tube, and blowpipe.
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In literature:

See, already they're getting out their bows and arrows, and blowguns!
"Tom Swift and his Electric Rifle" by Victor Appleton
He had instructed Frank in his methods, and had given him one of the long blowguns used by some of the hill tribes in India.
"By Sheer Pluck" by G. A. Henty
Venusians, if his memory was right, had a sort of blowgun as a main weapon.
"Rip Foster in Ride the Gray Planet" by Harold Leland Goodwin
There was a spatter of tiny missiles on the wall next to him and he had a brief glimpse of raised blowguns before the wall intervened.
"Planet of the Damned" by Harry Harrison
Those blowgun darts aren't going to hurt you as long as they're hitting steel.
"Despoilers of the Golden Empire" by Gordon Randall Garrett
See, the two blowgun men carry also short darts in their quivers, and small pouches of poison.
"The Pathless Trail" by Arthur O. (Arthur Olney) Friel
The tube-and-mouthpiece; a blowgun of some kind.
"Sense of Obligation" by Henry Maxwell Dempsey (AKA Harry Harrison)

In news:

The Nitra line by AutomationDirect has expanded its tubing and fittings offering with brass adapter fittings and plugs and polyurethane tubing , aluminum manifolds, and blowguns that are designed to meet most pneumatic applications.
The NITRA line of pneumatic components has been expanded with tubing and fittings, as well as blowguns and aluminum manifolds.