xi particle

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noun Physics.

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

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Compare cascade particle.

Origin of xi particle

First recorded in 1960–65

Words nearby xi particle

Xining, Xinjiang, Xinjiang Uygur Autonomous Region, Xinxiang, -xion, xi particle, Xipe, xiphi-, xiphisternum, xiphoid, xiphosuran