transcription, транскрипция: [ ˈe-pə-kəl, ˈe-ˌpä-kəl ]
adjective
Date: 1685
1. : of or relating to an epoch
2. : uniquely or highly significant : momentous
during his three epochal years in the assembly — C. G. Bowers
also : unparalleled
epochal stupidity
• ep·och·al·ly adverb