ommatophore Syllabification: (om·mat·o·phore)Pronunciation: /əˈmatəˌfôr/Definition of ommatophore noun Zoology a part of an invertebrate animal, especially a stalk or tentacle, that bears an eye. Origin: late 19th century: from Greek omma, ommat- 'eye' + -phoreommatophore in other Oxford dictionaries Definition of ommatophore in the British & World English dictionary