pentaquark - definition and synonyms

noun [countable] physics 

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/ˈpentəkwɑː(r)k/
singularpentaquark
pluralpentaquarks
  1. a subatomic particle consisting of five quarks. It was first observed by scientists working at the Large Hadron Collider. This meaning is based on one submitted to the Open Dictionary from United Kingdom on 16/07/2015