Definify.com
Webster 1913 Edition
Blowtube
Blow′tubeˊ
,Noun.
1.
A blowgun.
Tylor.
2.
A similar instrument, commonly of tin, used by boys for discharging paper wads and other light missiles.
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
.