lemniscate

  1. Noun.  The symbol for infinity, which resembles the figure 8 on its side.
  2. Noun.  (mathematics) Any closed curve (similar to a figure eight) described by a Cartesian equation of the form (x^2 + y^2)^2 = a^2 (x^2 - y^2),.

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This entry was last updated on RefTopia from its source on 3/20/2012.