Associations to the word «Pi»


PI, noun. The name of the sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.
PI, noun. (mathematics) An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.1415926535897932384626433832795; usually written π.
PI, noun. (metal typesetting) Metal type that has been spilled, mixed together, or disordered. Also called pie.
PI, verb. (metal typesetting) To spill or mix printing type. Also, "to pie".
PI, adjective. (typography) Not part of the usual font character set; especially, non-Roman type or symbols as opposed to standard alphanumeric Roman type.
PI, abbreviation. (typography) pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch)
PI, abbreviation. Piaster
PI, abbreviation. Pious
PI, abbreviation. Piauí, a state of Brazil.
PI, abbreviation. Isoelectric point
PI DAY, proper noun. March 14th, of the 15th year of any century (3.1415 from 3/14/15)
PI DAY, noun. March 14th
PI IGG, noun. (medicine) (biology) Abbreviation of pre-immune immunoglobulin G.
PI IGGS, noun. Plural of PI IgG
PI MESON, noun. (archaic/formal) A pion.

Dictionary definition

PI, noun. The ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846....
PI, noun. Someone who can be employed as a detective to collect information.
PI, noun. The scientist in charge of an experiment or research project.
PI, noun. The 16th letter of the Greek alphabet.
PI, noun. An antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs.

Wise words

Words - so innocent and powerless as they are, as standing in a dictionary, how potent for good and evil they become in the hands of one who knows how to combine them.
Nathaniel Hawthorne