Xi Meaning What is Xi? Is Xi a word?

For a basic Xi meaning, look to the Greek alphabet. Xi is the 14th letter of this system. As a Greek letter, you can also find more than one Xi definition in the world of math and science. In particle physics, one Xi meaning is as a class of particles identified as Xi baryons or cascade particles. In the mathematical field known as set theory, a very broad Xi definition is as a symbol of the concept of a universal set, a set that encompasses all things including itself.

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Xi Definition

(noun)

Definitions

the fourteenth letter of the Greek alphabet (Ξ, ξ), transliterated as ‘x’.