Definition of blowpipe
1
: a small tubular instrument for directing a jet of air or other gas into a flame so as to concentrate and increase the heat
2
: blowgun
3
: a tubular instrument used for revealing or cleaning a bodily cavity by forcing air into it
4
: a long metal tube on the end of which a glassmaker gathers a quantity of molten glass and through which he blows to expand and shape it
