ommatidium(redirected from ommatidia)
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Related to ommatidia: Rhabdomere
n. pl. om·ma·tid·i·a (-ē-ə)
One of the optical units, consisting of photoreceptors and usually one or more lenses, that make up a compound eye of an insect or a crustacean.
om′ma·tid′i·al (-ē-əl) adj.
n, pl -tidia (-ˈtɪdɪə)
(Zoology) any of the numerous cone-shaped units that make up the compound eyes of some arthropods
[C19: via New Latin from Greek ommatidion, from omma eye]
om•ma•tid•i•um(ˌɒm əˈtɪd i əm)
n., pl. -tid•i•a (-ˈtɪd i ə)
one of the units that make up the compound eye of insects and other arthropods.
[1880–85; < New Latin < Greek ommat-]
One of the tiny light-sensitive parts of the compound eye of insects and other arthropods. An ommatidium resembles a single simplified eye. See more at compound eye.
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|Noun||1.||ommatidium - any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods|
compound eye - in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image