Era meaning

îrə, ĕrə
The definition of an era is a period of time in history that is unified by cultural or historical factors.

An example of an era is the industrial era.

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An event or date that marks the beginning of a new or important period in the history of something.
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A period of time characterized by particular circumstances, events, or personages.

The Colonial era of US history; the Reagan era.

noun
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The longest division of geologic time, made up of one or more periods.
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Earned run average.
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A period of time as reckoned from a specific date serving as the basis of its chronological system.
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Earned run average.
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Equal Rights Amendment.
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A division of geologic time , longer than a period and shorter than an eon.
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(Electrically Reconfigurable Array) A programmable logic chip (PLD) technology from Plessey Semiconductor that allows the chip to be reprogrammed electrically.
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A time period of indeterminate length, generally more than one year.
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(geology) A unit of time, smaller than aeons and greater than periods.
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Equal Rights Amendment.
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A system of reckoning time by numbering the years from some important occurrence or given point of time.

The Christian Era.

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A period of time measured from some important occurrence or date.
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A period of time considered in terms of noteworthy and characteristic events, developments, individuals, etc.

An era of progress.

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A subdivision of an eon.
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Origin of era

  • Late Latin aera from Latin counters pl. of aes aer- bronze coin ayes- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Late Latin aera.

    From Wiktionary