golden mean
Noun
Meaning
the middle between extremes
the proportional relation between two divisions of line or two dimension of a plane figure such that short : long :: long : (short + long)
Source: WordNetSynonyms
Antonyms
Hypernyms
Examples
Overall, the business of denazification in the French zone was considered a "golden mean between an excessive degree of severity and an inadequate standard of leniency," laying the groundwork for an enduring reconciliation between France and Germany.
This is done by first placing vectors along the octahedron's edges such that each face is bounded by a cycle, then similarly subdividing each edge into the golden mean along the direction of its vector.