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sigma particle

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noun Physics.
an unstable hyperon having positive, negative, or zero electric charge and strangeness −1. Symbol: Σ
QUIZ
QUIZ YOURSELF ON "IS" VS. "ARE"
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
Question 1 of 7
IS and ARE are both forms of which verb?
Also called sigma baryon.

Origin of sigma particle

First recorded in 1960–65

Words nearby sigma particle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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