Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective So significant and momentous as to characterize the beginning of a period.

from The Century Dictionary.

  • Constituting an epoch; opening a new era; introducing new conceptions or a new method in the treatment of a subject.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Constituting an epoch; opening a new era; introducing new conceptions or a new method in the treatment of a subject.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective highly significant or important especially bringing about or marking the beginning of a new development or era

Etymologies

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