lemniscate

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • noun The infinity symbol (∞).

from The Century Dictionary and Cyclopedia

  • adjective In ichthyology, having a hyaline or transparent appearance and ribbonlike form; of or relating to the Lemniscati: as, a lemniscate fish.
  • noun The locus of the point at which the tangent to an equilateral hyperbola meets the perpendicular let fall upon it from the center: a curve invented by James Bernoulli.
  • noun Any crunodal curve of the fourth order having only one real branch, and this finite and symmetrical with respect to two axes.
  • noun The locus of the point at which the tangent to a fixed conic is cut by a perpendicular let fall upon it from the center.
  • noun The locus of the point in which the straight through the center and the projection of a point of a circle on a fixed tangent are cut by the perpendicular from this point to the diameter from the contact point.

Examples

  • Above the Magician’s head was the figure-eight shaped lemniscate, the sign of infinity, glowing golden against a background of lilies.

    Dark Oracle

  • Some projective-geometrical considerations concerning the lemniscate are to be found in the previously mentioned writings of G. Adams and L. L.cher-Ernst.

    Man or Matter

  • You have read, too, in _The Secret Doctrine, _ P.ofessor Crooke's theory, endorsed by H.P. Blavatsky, as to how the chemical elements were deposited by a spiral evolutive force, a creative impulse working outward in the form of a caduceus or lemniscate, or figure '8.'

    The Crest-Wave of Evolution A Course of Lectures in History, Given to the Graduates' Class in the Raja-Yoga College, Point Loma, in the College-Year 1918-19

  • About the epoch of maximum of sun-spots they are large and nearly circular, having the same character as the curves for the summer months; whilst about the time of sun-spot minimum they are small and lemniscate-shaped, with a striking resemblance to the curves for the winter months.

    Autobiography

  • It's not just any lemniscate, but the Lemniscate of Gerono: the infinity symbol which has a double point of origin and curves back on itself.

    All articles at Blogcritics

  • Because we can still learn from the children, as it should be, like the lemniscate, the great infinity loop.

    Witchvox - RSS Feed - New Articles This Week

Note

The word 'lemniscate' comes from Latin 'lēmniscātus' ("decorated with ribbons").