English version

pi

From Longman Dictionary of Contemporary English
Related topics: Maths, Numbers
pipi /paɪ/ noun [uncountable] 🔊 🔊 technicalHM a number that is represented by the Greek letter (π) and is equal to the distance around a circle, divided by its width
Examples from the Corpus
pi• A broken networked intelligence may be able to calculate pi to the billionth digit but not forward e-mail to a new address.• Consider a symmetric equilibrium in which the n firms in industry i all charge a price pi.• Now came the pi ce de r sistance.• One of his most popular miracles occurred one day while pi owing.
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.