super epoch


[ep-uhk or, esp. British, ee-pok]
a particular period of time marked by distinctive features, events, etc.: The treaty ushered in an epoch of peace and good will.
the beginning of a distinctive period in the history of anything: The splitting of the atom marked an epoch in scientific discovery.
a point of time distinguished by a particular event or state of affairs; a memorable date: His coming of age was an epoch in his life.
Geology. any of several divisions of a geologic period during which a geologic series is formed. Compare age ( def 12 ). See table under geologic time.
an arbitrarily fixed instant of time or date, usually the beginning of a century or half century, used as a reference in giving the elements of a planetary orbit or the like.
the mean longitude of a planet as seen from the sun at such an instant or date.
Physics. the displacement from zero at zero time of a body undergoing simple harmonic motion.

1605–15; < Neo-Latin epocha < Greek epochḗ pause, check, fixed time, equivalent to ep- ep- + och- (variant stem of échein to have) + noun suffix

subepoch, noun
superepoch, noun

epic, epoch.

1. age, date, era, time. See age. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
epoch (ˈiːpɒk)
1.  a point in time beginning a new or distinctive period: the invention of nuclear weapons marked an epoch in the history of warfare
2.  a long period of time marked by some predominant or typical characteristic; era
3.  astronomy a precise date to which information, such as coordinates, relating to a celestial body is referred
4.  geology a unit of geological time within a period during which a series of rocks is formed: the Pleistocene epoch
5.  physics the displacement of an oscillating or vibrating body at zero time
[C17: from New Latin epocha, from Greek epokhē cessation; related to ekhein to hold, have]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

1610s, "point marking the start of a new period in time" (e.g. the founding of Rome, the birth of Christ, the Hegira), from M.L. epocha, from Gk. epokhe "stoppage, fixed point of time," from epekhein "to pause, take up a position," from epi- "on" + ekhein "to hold." Transferred sense of "a period of
time" is 1620s; geological usage (not a precise measurement) is from 1802. Related: Epochal.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
epoch   (ěp'ək, ē'pŏk')  Pronunciation Key 
The shortest division of geologic time. An epoch is a subdivision of a period.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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