A tube through which air or gas is blown, especially one used to direct a flame or blow darts.
Compound of 'blow' (to force air through) and 'tube' (a hollow cylinder). The word has been in use since at least the 17th century for various mechanical and craft devices.
Indigenous peoples in South America used blowtubes (blowguns) for hunting with such precision that they remained superior to early firearms in rainforest environments where accuracy mattered more than power.
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