Skip to main content
Glite Dictionary
🔢 A math constant 🔤 A Greek letter
pi

pi

3 5.6
A Greek letter used in science and math
  • noun
  • /paɪ/
translation icon : pi
  • The Raspberry Pi is a single-board computer.
  • Pi Tau Sigma
  • Pi Tau
  • Pi Delta

Examples

  • Now that P is called for this purpose, Pi Π is the Greek version of P.

  • I'm still working on it, but can you see the Pi symbol there looks better.

  • Malcolm multiplies his answer by pi, also written as Pi.

    Fiction book (2000)

  • So let's think about all the numbers like π Pi should be somewhere about here, right?

  • Known to all as... Pi, the sixteenth letter of the Greek alphabet... which is also used in mathematics to represent the ratio... of any circle's circumference to its diameter.

    Life of Pi (2012)

  • In geometry, the area of a circle is calculated using the formula A = r² × pi.

  • The symbol Pi (Π) is prominent in various scientific equations, especially in trigonometry.

  • In mathematics, pi is often approximated as 3.14 in calculations.

Compounds

pi-meson
  • Specialized
9.9

A small particle that helps hold the center of an atom together

pom pi pi
  • Baby Talk
9.9

A short, simple beat that keeps the rhythm in songs

Surface Forms

pi singular
pis plural

Etymology

Pi is the name of the sixteenth letter of the Greek alphabet, much like our letter p in English. Think of it as the Greek 'p', which is why scientists and mathematicians use pi as a letter in equations and formulas.