hemera

noun hem·era \ˈhemərə\

Definition of hemera

plural

hemerae

\-ə(ˌ)rē\ also

hemera

  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

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of hemera

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


Seen and Heard

What made you want to look up hemera? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a brief usually trivial fact

Get Word of the Day daily email!