Definitions for ommatidiumˌɒm əˈtɪd i əm; -ˈtɪd i ə

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Random House Webster's College Dictionary

om•ma•tid•i•umˌɒm əˈtɪd i əm; -ˈtɪd i ə(n.)(pl.)-tid•i•a

  1. one of the units that make up the compound eye of insects and other arthropods.

    Category: Zoology

Origin of ommatidium:

1880–85; < NL < Gk ommat-

om`ma•tid′i•al(adj.)

Princeton's WordNet

  1. ommatidium(noun)

    any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods

Wiktionary

  1. ommatidium(Noun)

    One of the conical substructures which make up the eyes of invertebrates.

  2. Origin: From the stem form of ‘eye’ + -idium.


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