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ommateum

[om-uh-tee-uh m]
noun, plural om·ma·te·a [om-uh-tee-uh] /ˌɒm əˈti ə/. Zoology.
  1. compound eye.
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Origin of ommateum

1880–85; < New Latin < Greek ommat- (stem of ómma) eye + New Latin -eum noun suffix
Related formsom·ma·te·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018