In periodization, epoch can refer to:

* Epoch (reference date) - A defining moment in the beginning of, or characteristic of, a distinctive historical period or era.
* On the geologic time scale, a span of time smaller than a "period" and larger than an "age".
* A phase in the development of the universe with distinctive properties during the the Big Bang.
*Epoch (astronomy) - a precise moment in time for which celestial coordinates or orbital elements are specified by international agreement, usually periodically reset to centennial and half-century dates. All other orbits calculations near or after the astronomical epoch are based on the epoch date.
* Many computer operating systems maintain system time based on some starting time called the epoch. For example, Unix and POSIX systems count time as seconds since January 1 1970. See Unix time.

Proper noun

*Epoch (magazine), the literary magazine of Cornell University.
*Ha-Tsefirah (lit. Epoch), a Hebrew language newspaper published in 1862 and 1874-1931.
*Epoch (film), a science fiction film directed by Matt Codd
*Epoch Game Pocket Computer, an early hand-held game console
*Epoch Co., the maker of the above and other computer games
*Epoch (Chrono Trigger), a flying time machine in role-playing game "Chrono Trigger"
*Epoch (DC Comics), a supervillain also known as the Lord of Time
*Epoch (Marvel Comics), a cosmic entity in the Marvel Comics universe.
*Epoch Hunter, a boss in World of Warcraft's Caverns of Time; Old Hillsbrad Foothills.
*The Epoch Times, a privately owned Falun Gong-linked newspaper
*Epoch Javascript Calendar is an open source, GPL calendar component for use in web pages written in JavaScript.
*Epoch operating system was a European research project in the 1990s to build an operating system based on the ChorusOS operating system kernel.


* A step in the training process of an artificial neural network

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, , , , (remarkable for some event)

Look at other dictionaries:

  • Epoch — Ep och ([e^]p [o^]k or [=e] p[o^]k; 277), n. [LL. epocha, Gr. epochh check, stop, an epoch of a star, an historical epoch, fr. epe chein to hold on, check; epi upon + e chein to have, hold; akin to Skr. sah to overpower, Goth. sigis victory, AS.… …   The Collaborative International Dictionary of English

  • epoch — 1. An epoch is the beginning of a distinctive period in the history of something or someone, whereas an era is a period of history characterized by particular circumstances or by a particular series of events. A period is a more general term for… …   Modern English usage

  • Epoch — (dt. Epoche) bezeichnet im deutschen Sprachgebrauch die Epoche der Unixzeit zwei US amerikanische Science Fiction Filme, siehe Torus – Das Geheimnis aus einer anderen Welt (Epoch), Epoch: Evolution (2003) einen japanischen Hersteller von… …   Deutsch Wikipedia

  • Epoch — Epoch  неоднозначный термин. Возможные значения: Epoch  японская компания по производству детских игрушек. Unix Epoch  UNIX время, система описания моментов во времени, принятая в UNIX …   Википедия

  • epoch — [ep′ək; ] also [ ep′äk΄; ] Cdn & Brit usually [ ē′päk΄] n. [ML epocha < Gr epochē, a check, cessation < epechein, to hold in, check < epi , upon + echein, to hold: see SCHEME] 1. the beginning of a new and important period in the history …   English World dictionary

  • epoch — index age, cycle, duration, lifetime, period, phase (period) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • epoch — 1610s, epocha, point marking the start of a new period in time (e.g. the founding of Rome, the birth of Christ, the Hegira), from L.L. epocha, from Gk. epokhe stoppage, fixed point of time, from epekhein to pause, take up a position, from epi on… …   Etymology dictionary

  • epoch — era, age, *period, aeon …   New Dictionary of Synonyms

  • epoch — [n] period age, date, era, span, time; concepts 807,822 …   New thesaurus

  • epoch — ► NOUN 1) a period of time marked by particular events or characteristics. 2) the beginning of a period of history. 3) Geology a division of time that is a subdivision of a period and is itself subdivided into ages. DERIVATIVES epochal adjective …   English terms dictionary

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