ommatidium
English edit
Etymology edit
From the stem form of Ancient Greek ὄμμα (ómma, “eye”).
Pronunciation edit
Noun edit
ommatidium (plural ommatidia)
- (zoology) One of the conical substructures which make up the eyes of invertebrates with compound eyes.
- 1996, Michael J. Roberts, Spiders of Britain and Northern Europe, Collins, published 1996, page 12:
- The ‘compound’ eyes of insects [...] are made up of large numbers of facets or ommatidia, and in this sense, our own eyes are ‘simple’.
Translations edit
Latin edit
Pronunciation edit
- (Classical) IPA(key): /om.maˈti.di.um/, [ɔmːäˈt̪ɪd̪iʊ̃ˑ]
- (modern Italianate Ecclesiastical) IPA(key): /om.maˈti.di.um/, [omːäˈt̪iːd̪ium]
Noun edit
ommatidium n (genitive ommatidiī or ommatidī); second declension
Declension edit
Second-declension noun (neuter).
Case | Singular | Plural |
---|---|---|
Nominative | ommatidium | ommatidia |
Genitive | ommatidiī ommatidī1 |
ommatidiōrum |
Dative | ommatidiō | ommatidiīs |
Accusative | ommatidium | ommatidia |
Ablative | ommatidiō | ommatidiīs |
Vocative | ommatidium | ommatidia |
1Found in older Latin (until the Augustan Age).