Vegetarian totally abstain from eating flesh of meat or fish  
Yeah , so I learnt.what makes a person a vegetarian?
Vegetarianism
Vegetarianism is the practice of abstaining from the consumption of meat (red meat, poultry, seafood, and the flesh of any other animal), and may also include abstention from by-products of animals processed for food.
Vegetarianism may be adopted for various reasons. Many people object to eating meat out of respect for sentient life. Such ethical motivations have been codified under various religious beliefs, as well as animal rights advocacy. Other motivations for vegetarianism are health-related, political, environmental, cultural,
are restricted according to Shastras. Many Hindus discourage eating onion and garlic along with non-vegetarian food during festivals or Hindu holy months of Shrawan, puratassi and Kartik. However, shunning onion and garlic is not very popular among Hindus as compared to avoiding non-vegetarian foods, so many people do not follow this custom.
Jains not only abstain from consumption of meat, but also do not eat root vegetables (such as carrots, potatoes, radish, turnips, etc) as doing so kills the plant and they