om·ma·tid·i·um ( m  -t d  -m)n. pl. om·ma·tid·i·a (- -) One of the structural elements, resembling a single simplified eye, that make up the compound eye of insects and other arthropods. [New Latin, diminutive of Greek omma, ommat-, eye; see okw- in Indo-European roots.] om ma·tidi·al (--l) adj. |
ommatidium [ˌɒməˈtɪdɪəm]
n pl -tidia [-ˈtɪdɪə]
(Life Sciences & Allied Applications / Zoology) any of the numerous cone-shaped units that make up the compound eyes of some arthropods
[via New Latin from Greek ommatidion, from omma eye]
ommatidial adj
| ommatidium (m-td-m) Plural ommatidia 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. |
ThesaurusLegend: Synonyms Related Words Antonyms
| 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 |
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