epoch
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ep·och
(ĕp′ək, ē′pŏk′)n.
1. A particular period of history, especially one considered remarkable or noteworthy.
2. A unit of geologic time that is a division of a period.
3. Astronomy An instant in time that is arbitrarily selected as a point of reference for specification of celestial coordinates.
[Medieval Latin epocha, measure of time, from Greek epokhē, a point in time; see segh- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
epoch
(ˈiːpɒk)n
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) astronomy a precise date to which information, such as coordinates, relating to a celestial body is referred
4. (Palaeontology) geology a unit of geological time within a period during which a series of rocks is formed: the Pleistocene epoch.
5. (General Physics) 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]
epochal adj
ˈepˌochally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ep•och
(ˈɛp ək; esp. Brit. ˈi pɒk)n.
1. a period of time marked by distinctive features, noteworthy events, changed conditions, etc.: an epoch of peace.
2. the beginning of a distinctive period in the history of anything.
3. a point of time distinguished by a particular event or state of affairs; a memorable date.
4. any of several divisions of a geologic period during which a geologic series is formed.
5. an arbitrarily fixed instant of time used as a reference in giving the elements of the orbit of a celestial body.
[1605–15; < New Latin epocha < Greek epochḗ pause, check, fixed point in time]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ep·och
(ĕp′ək, ē′pŏk′) The shortest division of geologic time, being a subdivision of a period.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
epoch
- Pronounced EH-puhk, it is from Greek epokhe, "fixed point in time, stoppage," and it was first the initial point in a chronology from which succeeding years were numbered.See also related terms for stoppage.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
epoch
A time unit within a geological period.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
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Noun | 1. | epoch - a period marked by distinctive character or reckoned from a fixed point or event period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period" day - an era of existence or influence; "in the day of the dinosaurs"; "in the days of the Roman Empire"; "in the days of sailing ships"; "he was a successful pianist in his day" historic period, age - an era of history having some distinctive feature; "we live in a litigious age" modern era - the present or recent times |
2. | epoch - (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole date - the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred; "he tried to memorizes all the dates for his history class" | |
3. | epoch - a unit of geological time that is a subdivision of a period and is itself divided into ages geologic time, geological time - the time of the physical formation and development of the earth (especially prior to human history) geological period, period - a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods" |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
epoch
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
epoch
nounThe American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
عَصْر
epoke
aikakausiajanjaksoepookkikäännekohta
tímamót
epocha
laikmets
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
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Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
epoch
(ˈiːpok) , ((American) ˈepək) noun (the start of) a particular period of history, development etc. The invention of printing marked an epoch in the history of education.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.