English Explanatory Dictionary

Pi Day

English dictionary entry

Meanings

name
  1. March 14th, an annual celebration of the mathematical constant π (pi).

Pronunciation

/ˈpaɪ deɪ/ en-au-Pi Day.ogg

Word forms

Pi Day π Day

Etymology

pi + day, from the date March 14th in the month/day format (that is, 3/14), 3, 1 and 4 being the first three significant digits of the mathematical constant π.

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