pi

Primary Meanings of pi

1.
 n
the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
2.
 n
the 16th letter of the Greek alphabet
Full Definitions of pi
1

n the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

Type of:
transcendental number
an irrational number that is not algebraic
2

n the 16th letter of the Greek alphabet

Type of:
alphabetic character, letter, letter of the alphabet
the conventional characters of the alphabet used to represent speech

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