pi
pronunciation
How to pronounce pi in British English:
UK [paɪ]
How to pronounce pi in American English:
US [paɪ]
-
- Noun:
- the ratio of the circumference to the diameter of a circle
- the 16th letter of the Greek alphabet
Word Origin
- pi (n.)
- Greek letter, from Hebrew, literally "little mouth." As the name of the mathematical constant, from 1841 in English, used in Latin 1748 by Swiss mathematician Leonhart Euler (1707-1783), as an abbreviation of Greek periphereia "periphery." For the meaning "printer's term for mixed type," see pie (3).
Example
- 1. Appropriately , the decision was made on pi day .
- 2. But they have damaged mr pi era , perhaps permanently .
- 3. So is this the end of pi as we know it ?
- 4. The mathematicians aren 't saying that pi has been wrongly calculated .
- 5. Similarly , three quarters of a circle is three halves of pi .