Pertuso (m)
(with) definite article: ilinternal canal of a tube; conical (tapered), or cylindrical
From Pertugio [hole, perforation]; Apparently, according to Gala, a [dialect] term used for the internal canal of a tube; Not encountered as such in other sources; NB: Van der Meer mentions the plural form in Baldano's description of the Sordellina, in which it is explicitly used as the term for the fingerholes.
Gala, Giuseppe Michele: La zampogna in Campania. In: La zampogna: gli aerofoni a sacco in Italia (2005), II, p.9.
Meer, John Henry van der: La sordellina: organologia e tecnica esecutiva. In: Baldano: Libro per scriver l’intavolatura per sonare… (1995), p.77 (pertusi).
ws (linguistics [➺ Dictionaries, &c.])