vegetarian

adj. of or relating to vegetarians; , consisting of vegetables, not containing meat

n. one who only eats vegetables, one who does not eat meat, herbivore

This article refers to human nutrition and diet. For plant based diets in the animal kingdom see herbivore Vegetarianism is the practice of a diet that excludes all animal flesh, including poultry, game, fish, shellfish or crustacea, and slaughter by-products. There are variations that admit dairy products, eggs and/or products from animal labor such as honey.
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Vegetarian /veg·e·tar·i·an/ 1. one who practices vegetarianism. 2. pertaining to vegetarianism. veg·e·tar·i·an n. One who practices vegetarianism. [more]Vegetarian - Community and Resources

Noun
1. eater of fruits and grains and nuts; someone who eats no meat or fish or (often) any animal products
(hypernym) eater, feeder
(hyponym) vegan

v. vegetate, grow