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tonoscope

noun
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ton·​oscope | \ -ˌskōp \

Definition of tonoscope

: an acoustical instrument for enabling a singer or player to see instantly any deviation from proper pitch of the tone being produced

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History and Etymology for tonoscope

tono- + -scope

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Cite this Entry

“Tonoscope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tonoscope. Accessed 20 Feb. 2020.

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