A person whose reactions to something serve as an indication of its acceptability.

Roget 408: resonance; ring etc. v.; ringing, tintinabulation etc. v.; reflexion [Brit.], reflection, reverberation; echo, reecho; zap, zot [Coll.]; buzz (hiss) 409.    low note, base note, bass note, flat note, grave note, deep note; bass; basso, basso profondo [It]; baritone, barytone^†; contralto.    [device to cause resonance] echo chamber, resonator.    [ringing in the ears] tinnitus [Med.].    [devices which make a resonating sound] bell, doorbell, buzzer; gong, cymbals (musical instruments) 417.    [physical resonance] sympathetic vibrations; natural frequency, coupled vibration frequency; overtone; resonating cavity; sounding board, tuning fork.    [electrical resonance] tuning, squelch, frequency selection; resonator, resonator circuit; radio &c.. [chemical resonance] resonant structure, aromaticity, alternating double bonds, non-bonded resonance; pi clouds, unsaturation, double bond, (valence). ... show more

music Resonator consisting of a thin board whose vibrations reinforce the sound of the instrument.

synonym: soundboard.

Dutch: mengpaneel, klankbodem, klankbord, resonansbodem, resonantiebodem, zangbodem