D defs.my
Entry 1 sense Webster, 1913

Sostenuto

· Sos·te·nu·to · IPA
01 a. Sustained; -- applied to a movement or passage the sounds of which are to sustained to the utmost of the nominal value of the time; also, t…
  1. 1.
    Sustained; -- applied to a movement or passage the sounds of which are to sustained to the utmost of the nominal value of the time; also, to a passage the tones of which are to be somewhat prolonged or protacted.(Mus.)