D defs.my
Entry 1 sense Webster, 1913

Basso

/băs'-ō/ · Bas·so · IPA /bˈæsoʊ/
01 n. The bass or lowest part; as, to sing basso.
  1. 1.
    The bass or lowest part; as, to sing basso.(Mus.)
Phrases & compounds
‖Basso continuo — A bass part written out continuously, while the other parts of the harmony are indicated by figures attached to the bass; continued bass.