lacto-ovo-vegetarianEnglishOxford New American Dictionarylacto-ovo-vegetarian /ˌlaktōˌōvōˌvejəˈterēən, ˌlæktoʊˌoʊvoʊˌvɛdʒəˈtɛriən / ▸ noun a person who eats vegetables, eggs, and dairy products but who does not eat meat.