1. Plural of blowtube; tubes through which air or breath is forced to produce sound or propel objects.
Usage: Most commonly refers to musical instruments or hunting/toy weapons
2. Tubes used in glassblowing or metalworking through which a craftsperson blows air to heat or shape molten material.
Usage: technical; craft-specific

Examples

• The children played with blowtubes, shooting small darts across the playground.
• Indigenous hunters used blowtubes to propel poisoned darts at game.
• The glassblower heated the furnace using several blowtubes to direct the flame.
• Musicians in some cultures create melodies by blowing through carved blowtubes.
• The artisan's collection of blowtubes hung on the workshop wall.