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2 definitions by aoiasimsd

March 14th. A "holiday" celebrated by math geeks everywhere. Pi is approximately 3.14, and March the 14th is 3/14.
omg t3h pi day d00d, we are so 1337, pi roxxors t3h boxxors!
by aoiasimsd March 21, 2005
In a circle, the ratio of the circumference to the diameter.
C = pi * d
Circumference = pi times diameter
by aoiasimsd March 21, 2005