Definitions for Epoch
ˈɛp ək; esp. Brit. ˈi pɒkepoch

Princeton's WordNetRate this definition:1.0 / 2 votes

1. era, epochnoun

   a period marked by distinctive character or reckoned from a fixed point or event

2. epoch, date of referencenoun

   (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded

3. epochnoun

   a unit of geological time that is a subdivision of a period and is itself divided into ages

WiktionaryRate this definition:3.0 / 3 votes

1. epochnoun

   A particular period of history, especially one considered remarkable or noteworthy.

2. epochnoun

   A notable event which marks the beginning of such a period.

3. epochnoun

   A precise instant of time that is used as a reference point.

4. epochnoun

   A precise instant of time that is used as a reference point (e.g. January 1, 1970, 00:00:00 UTC).

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. Epoch, Epochanoun

   The time at which a new computation is begun; the time from which dates are numbered.

   Etymology: ἐποχὴ.

   Moses distinctly sets down this account, computing by certain intervals, memorable æras and epochas, or terms of time. Thomas Browne, Vulgar Errours, b. vi. c. 1.

   These are the practices of the world, since the year sixty; the grand epoch of falshood, as well as debauchery. South.

   Some lazy ages, lost in sleep and ease,
   No action leave to busy chronicles;
   Such whose supine felicity but makes
   In story chasms, in epochas mistakes. Dryden.

   Their several epochas or beginnings, as from the creation of the world, from the flood, from the first olympiad, from the building of Rome, or from any remarkable passage or accident, give us a pleasant prospect into the histories of antiquity and of former ages. William Holder, on Time.

   Time is always reckoned from some known parts of this sensible world, and from some certain epochs marked out to us by the motions observeable in it. John Locke.

   Time, by necessity compel’d, shall go
   Through scenes of war, and ephochas of woe. Matthew Prior.

WikipediaRate this definition:0.0 / 0 votes

1. Epoch

   In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured. The moment of epoch is usually decided by congruity, or by following conventions understood from the epoch in question. The epoch moment or date is usually defined from a specific, clear event of change, an epoch event. In a more gradual change, a deciding moment is chosen when the epoch criterion was reached.

ChatGPTRate this definition:0.0 / 0 votes

1. epoch

   An epoch is a specific period of time in history or a person's life characterized by particular events or features. In terms of geology, it is a division of time that is a subdivision of a period. In the field of computing and programming, an epoch refers to a particular point in time from which time values are measured.

Webster DictionaryRate this definition:4.0 / 1 vote

1. Epochnoun

   a fixed point of time, established in history by the occurrence of some grand or remarkable event; a point of time marked by an event of great subsequent influence; as, the epoch of the creation; the birth of Christ was the epoch which gave rise to the Christian era

2. Epochnoun

   a period of time, longer or shorter, remarkable for events of great subsequent influence; a memorable period; as, the epoch of maritime discovery, or of the Reformation

3. Epochnoun

   a division of time characterized by the prevalence of similar conditions of the earth; commonly a minor division or part of a period

4. Epochnoun

   the date at which a planet or comet has a longitude or position

5. Epochnoun

   an arbitrary fixed date, for which the elements used in computing the place of a planet, or other heavenly body, at any other date, are given; as, the epoch of Mars; lunar elements for the epoch March 1st, 1860

WikidataRate this definition:0.0 / 0 votes

1. Epoch

   In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time. These time-varying astronomical quantities might include, for example, the mean longitude or mean anomaly of a body, the node of its orbit relative to a reference plane, the direction of the apogee or aphelion of its orbit, or the size of the major axis of its orbit. The main use of astronomical quantities specified in this way is to calculate other relevant parameters of motion, in order to predict future positions and velocities. The applied tools of the disciplines of celestial mechanics or its subfield orbital mechanics can be used to generate an ephemeris, a table of values giving the positions and velocities of astronomical objects in the sky at a given time or times. Astronomical quantities can be specified in any of several ways, for example, as a polynomial function of the time-interval, with an epoch as a temporal point of origin. Alternatively, the time-varying astronomical quantity can be expressed as a constant, equal to the measure that it had at the epoch, leaving its variation over time to be specified in some other way—for example, by a table, as was common during the 17th and 18th centuries.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Epoch

   ep′ok, or ē′-, n. a point of time fixed or made remarkable by some great event from which dates are reckoned: a period remarkable for important events: (astron.) the mean heliocentric longitude of a planet in its orbit at any given time.—adjs. Ep′ochal; Ep′och-mā′king.—Make, Mark, an epoch, to begin an important era. [Gr. epochē—epechein, to stop—epi, upon, echein, to hold.]

The New Hacker's DictionaryRate this definition:0.0 / 0 votes

1. epoch

   [Unix: prob.: from astronomical timekeeping] The time and date corresponding to 0 in an operating system's clock and timestamp values. Under most Unix versions the epoch is 00:00:00 GMT, January 1, 1970; under VMS, it's 00:00:00 of November 17, 1858 (base date of the U.S. Naval Observatory's ephemerides); on a Macintosh, it's the midnight beginning January 1 1904. System time is measured in seconds or ticks past the epoch. Weird problems may ensue when the clock wraps around (see wrap around), which is not necessarily a rare event; on systems counting 10 ticks per second, a signed 32-bit count of ticks is good only for 6.8 years. The 1-tick-per-second clock of Unix is good only until January 18, 2038, assuming at least some software continues to consider it signed and that word lengths don't increase by then. See also wall time. Microsoft Windows, on the other hand, has an epoch problem every 49.7 days — but this is seldom noticed as Windows is almost incapable of staying up continuously for that long.

CrunchBaseRate this definition:0.0 / 0 votes

1. epoch

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It's time for less work, and more entertainment.Entertainment makes life richer and more fulfilling, which is why we want you to be entertained. Our formula is simple: deliver captivating content in the best possible experience - one that is effortless and immersive.  epoch combs the cluttered web for the best video content and crafts it into mood-based channels. A beautiful interface allows you to easily swipe through preloaded videos, so you are never left waiting for something to watch. As you watch, epoch gets smarter and personalizes the experience to your interests and preferences. It's like your television, only smarter.

Dictionary of Nautical TermsRate this definition:0.0 / 0 votes

1. epoch

   The time to which certain given numbers or quantities apply.

Matched Categories

1. • Astronomy
   • Date
   • Geological Time

Anagrams for Epoch »

1. chope

2. poche

How to pronounce Epoch?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Epoch in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Epoch in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of Epoch in Pythagorean Numerology is: 2

Examples of Epoch in a Sentence

1. Cyril Connolly:

   The goal of every culture is to decay through over-civilization; the factors of decadence, -- luxury, skepticism, weariness and superstition, -- are constant. The civilization of one epoch becomes the manure of the next.

2. Vladimir Putin:

   This event will remain a very important epoch in domestic history forever.

3. Cyril Connolly:

   The civilization of one epoch becomes the manure of the next.

4. Charles Dickens:

   It was the best of times, it was the worst of times it ws the age of wisdom, it was the age of foolishness it was the epoch of belief, it was the epoch of incredulity it was the season of Light, it was the season of Darkness it was the spring of hope, it was the winter of despair we had everything before us, we had nothing before us we were all going directly to Heaven, we were all going the other way.

5. Ross MacPhee:

   Despite their ungainly appearance, different species of glyptodonts occupied habitats as distinct as open grassland and dense woodland, all the way from Patagonia to the southern parts of the continental United States, although their disappearance has been blamed on human depredation as well as climate change, some species persisted into the early part of the modern or Holocene epoch, long after the disappearance of mammoths and saber-toothed cats. Like the loss of giant ground sloths, mastodons, and dozens of other remarkable mammalian species, the precise cause of the New World megafaunal extinctions remains uncertain.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Epoch
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Epoch
3. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=Epoch
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Epoch
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Epoch
7. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Epoch
8. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=Epoch
9. ^ The New Hacker's Dictionary
   https://www.gutenberg.org/files/3008/3008-h/3008-h.htm#Epoch
10. ^ CrunchBase
    https://www.crunchbase.com/organization/epoch
11. ^ Dictionary of Nautical Terms
    https://www.gutenberg.org/cache/epub/26000/pg26000-images.html#:~:text=Epoch