Blowtube \Blow"tube`\, n.
1. A blowgun. --Tylor.
[1913 Webster]
2. A similar instrument, commonly of tin, used by boys for
discharging paper wads and other light missiles.
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3. (Glassmaking) A long wrought iron tube, on the end of
which the workman gathers a quantity of "metal" (melted
glass), and through which he blows to expand or shape it;
-- called also {blowing tube}, and {blowpipe}.
[1913 Webster]