golden sectiongolden section
- a proportion based on the golden ratio (sense ): held to be detectable in nature, classical architecture, Renaissance art, etc. and purported to be aesthetically pleasing to the eye (Ex.: in the line ACB, if AB is to AC as AC is to CB)
- golden ratio (sense )
A ratio, observed especially in the fine arts, between the two dimensions of a plane figure or the two divisions of a line such that the smaller is to the larger as the larger is to the sum of the two, a ratio of roughly three to five. Also called golden ratio.