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Definition of pi, meaning of pi


pi (plural: pis)

  1. The name of the sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.
  2. (mathematics) An irrational constant representing the ratio of the circumference of a circle to its diameter; approximately 3.1415927; usually written π, where pi x diameter = Circumference.
  3. (typesetting) metal type that has been spilled, mixed together, or disordered. Also called pie.


  • (irrational constant) Archimedes" constant, Ludolph"s constant, Ludolph"s number

2 letters in word "pi": I P.

No anagrams for pi found in this word list.

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