noun hem·era \ˈhemərə\

Definition of hemera



\-ə(ˌ)rē\ also


  1. 1 :  a stratigraphic zone comprising the time range of a particular fossil species

  2. 2 :  a period of time during which a race of organisms is at the apex of its evolution

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Origin and Etymology of hemera

New Latin, from Greek hēmera day; akin to Greek ēmar day, Armenian aur

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a rounded knoll or a ridge of ice

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