Abacus harmonicus
From Fresh Dictionary
Part or all of this page has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
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English
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Noun phrase
abacus harmonicus
- (music) An ancient diagram showing the structure and disposition of the keys of an instrument. - Crabb