epoch
(noun) a unit of geological time that is a subdivision of a period and is itself divided into ages
era, epoch
(noun) a period marked by distinctive character or reckoned from a fixed point or event
epoch, date of reference
(noun) (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
Source: WordNet® 3.1
epoch (plural epoches)
A particular period of history, especially one considered noteworthy or remarkable.
A notable event which marks the beginning of such a period.
(astronomy) A precise instant of time that is used as a point of reference.
(computing) Uses in computing.
A precise instant of time that is used as a point of reference (e.g, January 1, 1970, 00:00:00 UTC).
One complete presentation of the training data set to an iterative machine learning algorithm; generation.
(geology) A unit of geologic time subdividing a period into smaller parts.
• (particular period in history): age, era (only in general usage; in geology the words age, epoch, and era have specific meanings)
epoch (third-person singular simple present epochs, present participle epoching, simple past and past participle epoched)
(sciences, transitive) To divide (data) into segments by time period.
• Poche, chope, poché
Source: Wiktionary
Ep"och, n. Etym: [LL. epocha, Gr. sah to overpower, Goth. sigis victory, AS. sigor, sige, G. sieg: cf. F. époque. See Scheme.]
1. 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. In divers ages, . . . divers epochs of time were used. Usher. Great epochs and crises in the kingdom of God. Trench. The acquittal of the bishops was not the only event which makes the 30th of June, 1688, a great epoch in history. Macaulay.
Note: Epochs mark the beginning of new historical periods, and dates are often numbered from them.
2. 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. "So vast an epoch of time." F. Harrison. The influence of Chaucer continued to live even during the dreary interval which separates from one another two important epochs of our literary history. A. W. Ward.
3. (Geol.)
Definition: A division of time characterized by the prevalence of similar conditions of the earth; commonly a minor division or part of a period. The long geological epoch which stored up the vast coal measures. J. C. Shairp.
4. (Astron.) (a) The date at which a planet or comet has a longitude or position. (b) 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.
Syn.
– Era; time; date; period; age.
– Epoch, Era. We speak of the era of the Reformation, when we think of it as a period, during which a new order of things prevailed; so also, the era of good feeling, etc. Had we been thinking of the time as marked by certain great events, or as a period in which great results were effected, we should have called the times when these events happened epochs, and the whole period an epoch. The capture of Constantinople is an epoch in the history of Mahometanism; but the flight of Mahomet is its era. C. J. Smith.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 December 2024
(noun) Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit
Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. When coffee berries turn from green to bright red – indicating ripeness – they are picked, processed, and dried. Dried coffee seeds are roasted to varying degrees, depending on the desired flavor.
