- the letter π, used as the symbol for the ratio of the circumference of a circle to its diameter.
- the ratio itself: 3.141592+.
Origin of pi1
Other definitions for pi (2 of 5)
Origin of pi2
Other definitions for pi (3 of 5)
Other definitions for pi (4 of 5)
Other definitions for pi (5 of 5)
How to use pi in a sentence
In Pi, a numbers theorist named Max Cohen decides to put a power drill through his own brain.‘Noah’ Review: An Ambitious, Flawed Biblical Tale That You Have to See|Andrew Romano|March 28, 2014|DAILY BEAST
They included Yann Martel, author of Life of Pi, and Calvin Trillin.The Second Life of San Miguel de Allende|Michele Willens|February 26, 2014|DAILY BEAST
Life of Pi immediately became the odds-on favorite to win, with more bets placed on it than any other Booker nominee ever.The 12 Biggest Booker Prize Controversies|Thomas Flynn|July 23, 2013|DAILY BEAST
She was Richard Parker in Life of Pi, a tiger who confusingly talked, and with an Indian accent, to boot.MTV Movie Awards 2013 Best Moments: Rebel Wilson & More (VIDEO)|Kevin Fallon|April 15, 2013|DAILY BEAST
PE, like fe, is another Hebrew letter, tho Greek and math people prefer their PI better.National Scrabble Day: A Poem So You’ll Know All 101 Two-Letter Words|David Bukszpan|April 13, 2013|DAILY BEAST
"Quelle parole pi paura d' inganno che speranza di futuro frutto mi porsero," he tells us in the Filocolo, ed.Giovanni Boccaccio, a Biographical Study|Edward Hutton
And then Pi′tamakan went in and cut the ropes of eight horses, and safely led them out, making in all fifteen that she had taken.
And so passed Pi′tamakan, virgin, and brave woman chief of our people.
The Blackfeet call such a place—there were several of them—a pi′skan, a trap.
Pi′tamakan then ordered her followers to remain where they were and told the Blood chief to say the same thing to his men.
British Dictionary definitions for pi (1 of 4)
Word Origin for pi
British Dictionary definitions for pi (2 of 4)
Word Origin for pi
British Dictionary definitions for pi (3 of 4)
British Dictionary definitions for pi (4 of 4)
Scientific definitions for pi
Cultural definitions for pi
The irrational number obtained by dividing the length of the diameter of a circle into its circumference. Pi is approximately 3.1416. The sign for pi is π.