golden ratio

== English == === Pronunciation === === Noun === golden ratio (plural golden ratios) (geometry) The irrational number (approximately 1.618), usually denoted by the Greek letter φ (phi), which is equal to the sum of its own reciprocal and 1, or, equivalently, is the square root of the sum of itself and 1. Synonyms: extreme ratio, golden cut, golden number, golden proportion, mean ratio, sectio divina (Latin), ϕ (symbol) Hypernyms: algebraic number, algebraic integer, irrational number, quadratic integer ==== Translations ==== === See also === === Further reading === golden ratio on Wikipedia.Wikipedia