jam session

noun

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


JAM SESSION Defined for English Language Learners

jam session

noun

Definition of jam session for English Language Learners

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



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