ommatidium

== English == === Etymology === From Ancient Greek ὀμματίδιον (ommatídion, “little eye”), equivalent to ὄμμα (ómma, stem ὄμματ-) + -idium. === Pronunciation === (UK) IPA(key): /ɒməˈtɪdɪəm/ (Canada) IPA(key): /ɑməˈtɪdɪəm/ === Noun === ommatidium (plural ommatidia) (zoology) One of the conical substructures which make up the eyes of invertebrates with compound eyes. ==== Derived terms ==== ==== Translations ==== == Latin == === Etymology === From Ancient Greek ὀμματίδιον (ommatídion), diminutive of ὄμμα (ómma, “eye”). === Pronunciation === (Classical Latin) IPA(key): [ɔm.maˈtɪ.di.ũː] (modern Italianate Ecclesiastical) IPA(key): [om.maˈtiː.di.um] === Noun === ommatidium n (genitive ommatidiī or ommatidī); second declension ommatidium ==== Declension ==== Second-declension noun (neuter). 1Found in older Latin (until the Augustan Age). ==== See also ==== aumātium