Heptameride definition

A thing having seven parts or divisions.
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(chemistry, dated) A seven-unit oligomer.
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2007, Translator's notes in: Hermann von Helmholtz, On the Sensations of Tone, page 437, ISBN 1602066396.

As 301 = 7 × 43, he called each degree a heptameride, which he made = .03987 of an (equal) Semitone.

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2008, Patrizio Barbieri, Enharmonic: Instruments and Music 1470-1900, page 378, ISBN 8895203143.

Sauveur stresses that the difference between the pure 5th (176 heptamerides) and the tempered 5th (175) is equal to 1: so the temperaments of all the other intervals will also be multiples of 1.

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Origin of heptameride

  • From French heptaméride, from Ancient Greek ἑπτά (hepta, “seven”) + French méride (cf meridian).

    From Wiktionary