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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Dictionary Entries near diapason normal

diapasm

diapason

diapasonal

diapason normal

diapause

diapausing

diapedesis

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