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psi particle

[ sahy, psahy ]

noun

, Physics.
  1. any of a family of mesons consisting of a charmed quark and a charmed antiquark.
  2. an early name for the J/psi particle.

psi particle

noun

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

psi particle

/ sī,psī /

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Word History and Origins

Origin of psi particle1

First recorded in 1970–75

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