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xi particle

American  

noun

Physics.

  1. 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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.