Golden Spiral Pronunciation: /ˈɡoʊl.dən ˈspaɪ.rəl/ (GOHL-dun SPY-ruhl)
Definition: A logarithmic spiral whose growth factor is related to the Golden Ratio (approximately 1.618). In a golden spiral, the size of the spiral increases by a factor of φ for every quarter turn it makes. This spiral often appears in nature (such as in shells, hurricanes, and galaxies) as well as in art and architecture, prized for its aesthetic harmony.
Example: The pattern of seeds in a sunflower and the shape of a nautilus shell both closely resemble a golden spiral.