sounding board


noun

a thin, resonant plate of wood forming part of a musical instrument, and so placed as to enhance the power and quality of the tone.
a structure over or behind and above a speaker, orchestra, etc., to reflect the sound toward the audience.
a board used in floors, partitions, etc., for deadening sound.
a person or persons whose reactions serve as a measure of the effectiveness of the methods, ideas, etc., put forth.
a person or group that propagates ideas, opinions, etc.: He was more of a sounding board than a novelist.

Origin of sounding board

First recorded in 1760–70
Also called soundboard.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for sounding board

British Dictionary definitions for sounding board

sounding board

noun

Also called: soundboard a thin wooden board in a piano or comprising the upper surface of a resonating chamber in a violin, cello, etc, serving to amplify the vibrations produced by the strings passing across itSee also belly (def. 6)
Also called: soundboard a thin screen suspended over a pulpit, stage, etc, to reflect sound towards an audience
a person, group, experiment, etc, used to test a new idea, policy, etc, for acceptance or applicability
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012