pis

Noun (1)

pi (countable and uncountable, plural pis)

1. The sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.
2. An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.14159265.

   Synonyms:

   Archimedes' constant, Ludolphian number, Ludolph's constant, Ludolph's number

Noun (2)

pi (countable and uncountable, plural pis)

1. Metal type that has been spilled, mixed together, or disordered.

Noun (3)

pi

1. pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch).
2. Piaster.

See all 9 meanings of pi