xi particle

American

noun

Physics.

any of a family of baryons having strangeness −2 and isotopic spin ½. Ξ

Etymology

Origin of xi particle

First recorded in 1960–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It should have a life span of one ten-billionth of a second after it is formed, and then decay into a xi particle and a pi-meson.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023