Carnist: a person who eats meat, and feels this is ethically justified
Carnivore: an animal that feeds only on other animals
Herbivore: an animal that feeds only on plants
Omnivore: an animal that eats animal products and plant products (e.g. chimpanzees, bears, and most humans)
Ovo-lacto (or lacto-ovo) vegetarian: a person who eats no meat, but still eats eggs (ovo) and dairy (lacto).
Pescetarian: a person who eats no other kind of meat except fish. Also sometimes referred to as a "pesco-vegetarian". The pescetarian diet is usually ovo-lacto vegetarian plus fish.
Piscivore: an animal that eats a diet primarily of fish (e.g. otters)
Vegan: a person who eats no animal products i.e. no meat, dairy or eggs.
- Olivia Rose-Innes, EnviroHealth Editor, Health24, updated July 2012
If there are additional terms you'd like to see on this list, please drop me a note in the EnviroHealth Forum..