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Meaning of epochal

ep•och•al

Pronunciation: (ep'u-kul or, esp. Brit., ē'po-), [key]
— adj.
  1. of, pertaining to, or of the nature of an epoch.
  2. extremely important, significant, or influential.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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