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jam session

noun

Simple Definition of jam session

  • : a gathering or performance in which musicians play together informally without any preparation : a session in which musicians jam with each other

Source: Merriam-Webster's Learner's Dictionary

Full Definition of jam session

  1. :  an often impromptu performance by a group especially of jazz musicians that is characterized by improvisation

Origin and Etymology of jam session

2jam


First Known Use: 1933


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