OVO-LACTO VEGETARIAN Meaning of OVO-LACTO VEGETARIAN in English ˌ ̷ ̷ ̷ ̷ ˌ ̷ ̷ ̷ ̷ - noun : lacto-ovo vegetarian herein Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012