D defs.my
Entry 3 senses Webster, 1913

Sounding-board

· Sound·ing-board · IPA
01 n. A thin board which propagates the sound in a piano, in a violin, and in some other musical instruments.
  1. 1.
    A thin board which propagates the sound in a piano, in a violin, and in some other musical instruments.(Mus.)
  2. 2.
    A board or structure placed behind or over a pulpit or rostrum to give distinctness to a speaker's voice.
  3. 3.
    See Sound boarding, under Sound, a noise. See: Sound