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sound box noun Definition of SOUND BOX 1 :  a hollow chamber in a musical instrument for increasing its sonority 2 :  a device in an early phonograph for producing sound from a record by using the vibration of a needle to move a diaphragm
sound box
noun
Definition of SOUND BOX
1
: a hollow chamber in a musical instrument for increasing its sonority
2
: a device in an early phonograph for producing sound from a record by using the vibration of a needle to move a diaphragm

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