pi
noun
The sixteenth letter of the Greek alphabet; the mathematical constant representing the ratio of a circle's circumference to its diameter, approximately 3.14159.
Etymology
From Greek pi, of Phoenician origin, related to Hebrew pe. The mathematical use began with Welsh mathematician William Jones in 1706.
Examples in Use
- 1.
"The value of pi continues infinitely without repeating."
- 2.
"We calculated the area using pi times radius squared."
- 3.
"Pi Day is celebrated on March 14th, written as 3/14."
Related Vocabulary
Synonyms
Related Words
Fun Fact
Published on Pi Day (3/14)! The record for memorizing pi digits is 70,030 digits, set by Rajveer Meena in 2015. Pi appears in countless formulas throughout physics and engineering.
Word Game Tips
Letters: 2 letters (P, I)
Scrabble Value: 4 points
Tip: The letter pattern in "PI" appears in many related words.
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