epoch(redirected from epochs)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
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.
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]
ep•och(ˈɛp ək; esp. Brit. ˈi pɒk)
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]
The shortest division of geologic time, being a subdivision of a period.
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.
A time unit within a geological period.
Switch to new thesaurus
|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)
epoch[ˈiːpɒk] n (period) → epoca, era
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. epog عَصْر епоха época epocha, mezník die Epoche epoke εποχήépoca ajajärk آغاز دوران aikakausi époqueתקופה युग epoha, razdoblje kor(szak) jaman tímamót epoca 新時代 (획기적이고도 특색있는) 시대, 시기 epocha laikmets zaman tijdperktid, epokeepoka دوره، عصر، زمانه época epocă эпоха epocha, medzník doba epoha epok ช่วงเวลาสำคัญในอดีต çağ, devir 時代，新紀元 епоха, доба کسی عہد کی ابتدا kỷ nguyên 时代，新纪元