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epoch-making

[ ep-uhk-mey-king or, especially British, ee-pok- ]
/ ˈɛp əkˌmeɪ kɪŋ or, especially British, ˈi pɒk- /
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adjective

opening a new era, as in human history, thought, or knowledge; epochal: an epoch-making discovery.

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Origin of epoch-making

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for epoch-making

epoch-making

adjective

of great importance; momentous
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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