plural noun Am·era \ˈamərə\

Definition of Amera

in certain classifications

  1. :  a major division of invertebrate animals comprising unsegmented more or less wormlike forms (such as Platyhelminthes, Nemathelminthes, and certain Bryozoa) — compare oligomera, polymera

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 amera

New Latin, from 2a- + -mera (from Greek meros part)

First Known Use: 1953

Seen and Heard

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


to help become familiar with something

Get Word of the Day daily email!