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
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
ommatidium(noun)
any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods
Wiktionary
ommatidium(Noun)
One of the conical substructures which make up the eyes of invertebrates.
Origin: From the stem form of ‘eye’ + -idium.
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