(redirected fromPi (definition)) Dictionary Thesaurus Encyclopedia π 1.The 16th letter of the Greek alphabet, pi. 2.Symbol for the ratio of the circumference of a circle to its diameter, approximately 3.14159; symbol forosmotic pressure(Π). ...
Pi (definition))Also found in: Dictionary, Thesaurus, Medical. pi pi, in mathematics, the ratio of the circumference of a circle to its diameter. The symbol for pi is π. The ratio is the same for all circles and is approximately 3.1416. It is of great importance in mathematics not ...
The nerdy holiday, observed on March 14 because the first three digits of pi are 3, 1 and 4, has been recognized by the U.S. FromNew York Times For example, pi times the radius squared, find the area of a circle to calculate pressures on hydraulic cylinders. ...
Using Bullet Points ( • ) Point of View: It's Personal Plural and Possessive Names: A Guide What's the difference between 'fascism' and 'socialism'? More Commonly Misspelled Words Popular in Wordplay See All 8 Words with Fascinating Histories ...
Pi, in mathematics, is the ratio of the circumference of a circle to its diameter. Because pi is irrational (not equal to the ratio of any two whole numbers), its digits do not repeat, and an approximation such as 3.14 or 22/7 is often used for everyday
British Dictionary definitions for pi (1 of 4) pi1 / (paɪ) / nounplural pis the 16th letter in the Greek alphabet (Π, π), a consonant, transliterated as p maths a transcendental number, fundamental to mathematics, that is the ratio of the circumference of a circle to its diameter...
Definition of Pi more ... The ratio of a circle's circumference to its diameter In other words: all the way around a circle divided by all the way across it. The symbol isπ No matter how large or small the circle, its circumference is alwaysπtimes its diameter. ...
2.(Mathematics)mathsa transcendental number, fundamental to mathematics, that is the ratio of the circumference of a circle to its diameter. Approximate value: 3.141 592…; symbol: π [C18 (mathematical use): representing the first letter of Greekperiphereiaperiphery] ...
n Euclidean geometry, pi is defined as the ratio of a circle’s circumference to its diameter with an approximate value of 3.14.
In math, pi is the ratio of a circle's circumference to its diameter. No matter how large or small a circle is, this ratio will always equal pi, or approximately 3.14.