Words: lacto-ovo vegetarianism ovo-lacto vegetarianism
Part of speech: n
Definition: a diet that consists primarily of foods of vegetable origin but also includes some animal products, such as eggs (ovo), milk, and cheese (lacto), but no meat, fish, or poultry.
Example: Ovo-Lacto vegetarianism is the most popular style of vegetarianism in the United States, while Lacto is the most popular worldwide.