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xi particle

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noun Physics.

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

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of xi particle

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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