I. ˌve-jə-ˈter-ē-ən noun
Etymology: veget able (II) + -arian
Date: 1839
1. : one who believes in or practices vegetarianism
2. : herbivore
II. adjective
Date: 1849
1. : of or relating to vegetarians
2. : consisting wholly of vegetables, fruits, grains, nuts, and sometimes eggs or dairy products
a vegetarian diet