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单词 era
释义

WordReference Random House Learner's Dictionary of American English © 2024
e•ra /ˈɪrə, ˈɛrə/USA pronunciation   n. [countable], pl. e•ras. 
  1. a period of time marked by special character, events, etc.;
    the period of time to which anything belongs.
  2. a system of chronologic notation reckoned from a given date:The Christian era starts at the birth of Christ.
  3. Geologya major division of geologic time.

WordReference Random House Unabridged Dictionary of American English © 2024
e•ra  (ērə, erə),USA pronunciation n. 
  1. a period of time marked by distinctive character, events, etc.:The use of steam for power marked the beginning of an era.
  2. the period of time to which anything belongs or is to be assigned:She was born in the era of hansoms and gaslight.
  3. a system of chronologic notation reckoned from a given date:The era of the Romans was based upon the time the city of Rome was founded.
  4. a point of time from which succeeding years are numbered, as at the beginning of a system of chronology:Caesar died many years before our era.
  5. a date or an event forming the beginning of any distinctive period:The year 1492 marks an era in world history.
  6. Geologya major division of geologic time composed of a number of periods. See table under geologic time. 
  • Late Latin aera fixed date, era, epoch (from which time is reckoned), probably special use of Latin aera counters (plural of aes piece of metal, money, brass); cognate with Gothic aiz, Old English ār ore, Sanskrit ayas metal
  • 1605–15
    • 1.See corresponding entry in Unabridged See age. 

ERA, 
    1. SportAlso, era  [Baseball.]See earned run average. 
    2. Government, Emergency Relief Administration.
    3. GovernmentEqual Rights Amendment: proposed 27th amendment to the U.S. Constitution that would prohibit discrimination on the basis of sex.

Collins Concise English Dictionary © HarperCollins Publishers::
era /ˈɪərə/ n
  1. a period of time considered as being of a distinctive character; epoch
  2. an extended period of time the years of which are numbered from a fixed point or event: the Christian era
  3. a point in time, esp one beginning a new or distinctive period
  4. a major division of geological time, divided into several periods
Etymology: 17th Century: from Latin aera counters, plural of aes brass, pieces of brass money
Collins Concise English Dictionary © HarperCollins Publishers::
ERA /ˈiːrə/ n acronym for
  1. (in Britain) Education Reform Act: the 1988 act which established the key elements of the National Curriculum
  2. (in the US) Equal Rights Amendment: a proposed amendment to the US Constitution enshrining equality between the sexes
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