epoch
/ˈɛp.ək/ noun C1- A particular period of history, or of a person's life, especially one considered noteworthy or remarkable.
- A notable event which marks the beginning of such a period.
- A specific instant in time, chosen as the point of reference or zero value of a system that involves identifying instants of time. · UNIX epoch; J2000 epoch
- A geochronologic unit of hundreds of thousands to millions of years; a subdivision of a period, and subdivided into ages (or sometimes subepochs).
- One complete presentation of the training data set to an iterative machine learning algorithm. · The neural network was trained over 500 epochs.
Plural epochs
From the library
He was, if I recollect, arrested in a tavern, in company with a great many others.” Then he added, “Monsieur, you may rest assured I shall perform my duty impartially, and that if he be innocent you shall not have appealed to me in vain; should he, however, be guilty, in this present epoch, impunity would furnish a dangerous example, and I must do my duty.”
Caulfield Gardens was one of those lines of flat-faced pillared, and porticoed houses which are so prominent a product of the middle Victorian epoch in the West End of London.
An Epoch in Anne’s Life
“I’ve had a splendid time,” she concluded happily, “and I feel that it marks an epoch in my life.
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