diapason normal

noun

Definition of diapason normal

: the standard pitch adopted by the French government in 1859 establishing A above middle C as 435 vibrations per second

called also French pitch, international pitch, low pitch

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History and Etymology for diapason normal

French, literally, normal diapason

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Cite this Entry

“Diapason normal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diapason%20normal. Accessed 15 Aug. 2020.

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