heptameride

noun /hɛpˈtæməɹaɪd/

1. A thing having seven parts or divisions.

   The Greeks had Seven Wise Men and Seven Sleepers, and the Pythagoreans saw magic in all the heptamerides.

2. A seven-unit oligomer.

   dated

   The residue remaining after the separation of the heptameride is colourless and very viscous; there appears little prospect of isolating higher polymerides …

   1930, British Chemical Abstracts: Part A, Pure Chemistry, page 317, ISSN 0365-9259.

3. An interval of pitch equal to 1/7 of a meride, or 1/301 of an octave.

   obsolete

   Sauveur divided the heptameride into two demi-heptamerides. One demi-heptameride is 1/602 of an octave, with frequency ratio 1:2^(1/602) = 1.001 154 or 1.993 cents, very nearly 1/12 of a ditonic comma.

Where it comes from

From French heptaméride, from Ancient Greek ἑπτά (heptá, “seven”) + French méride (compare meridian).

Adapted from the Wiktionary entry heptameride (CC BY-SA 4.0).

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