1. Noun.  Limitlessness, unlimitedness, something which is growing without limits or bounds.
  2. Noun.  A number that has an infinite numerical value that cannot be counted.
  3. Noun.  A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further.
  4. Noun.  The symbol .

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