Definition of logarithmic spiral in English:

logarithmic spiral

noun

Geometry
  • A spiral such that the angle between the tangent and the radius vector is the same for all points of the spiral.

    Also called equiangular spiral
    • ‘Kollerstrom took us on a journey through sacred geometry, symmetry, fractals, latent pentagrams and logarithmic spirals, illustrated with aerial shots of his favourite crop circles.’
    • ‘Work on the logarithmic spiral, which had been rectified by Wallis in the late 1650s, led Wren to note that it was possible to consider an area preserving transformation which would transform a cone into a solid logarithmic spiral.’
    • ‘He exhibited the logarithmic spiral as the stereographic projection of a loxodrome on a sphere, a projection he proved to be conformal.’
    • ‘He also investigated caustic curves and in particular he studied these associated curves of the parabola, the logarithmic spiral and epicycloids around 1692.’
    • ‘Oddly, that ice is riddled with a number of huge chasms that collectively form logarithmic spirals around the planet's poles.’

Pronunciation:

logarithmic spiral

/ˌläɡəˈriT͟Hmik ˈspīrəl/