Meaning of golden section

gold'en sec'tion

Pronunciation: [key]
— Fine Arts, Math.
  1. a ratio between two portions of a line, or the two dimensions of a plane figure, in which the lesser of the two is to the greater as the greater is to the sum of both: a ratio of approximately 0.618 to 1.000. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.