2 entries found for pi.
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Main Entry: pi
Pronunciation: primarystresspimacr
Function: noun
Inflected Form(s): plural pis /primarystresspimacrz/
1 : the 16th letter of the Greek alphabet -- Π or π
2 a : the symbol π representing the ratio of the circumference of a circle to its diameter b : the ratio itself having a value of approximately 3.1416

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