era

Etymology

Borrowed from Late Latin aera.

noun

  1. A time period of indeterminate length, generally more than one year.
    Even in an era when individuality in dress is a cult, his clothes were noticeable. He was wearing a hard hat of the low round kind favoured by hunting men, and with it a black duffle-coat lined with white. 1963, Margery Allingham, chapter 6, in The China Governess
    In an era when political leaders promise deliverance from decline through America’s purported preeminence in scientific research, the news that science is in deep trouble in the United States has been as unwelcome as a diagnosis of leukemia following the loss of health insurance. 2012-01, Philip E. Mirowski, “Harms to Health from the Pursuit of Profits”, in American Scientist, volume 100, number 1, archived from the original on 2012-04-04, page 87
  2. (geology) A geochronologic unit of tens to hundreds of millions of years; a subdivision of an eon, and subdivided into periods.

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