any of various herbaceous plants cultivated for an edible part such as the fruit or the root of the beet or the leaf of spinach or the seeds of bean plants or the flower buds of broccoli or cauliflower
A vegetable is a plant whose stem, leaves, tubers, roots, bulbs, or flower is a food source for people. Some examples of vegetables include carrots, eggplant, potatoes, spinach, broccoli, onion, and asparagus.
Vegetable is a culinary term. Its definition has no scientific value and is somewhat arbitrary and subjective. All parts of herbaceous plants eaten as food by humans, whole or in part, are generally considered vegetables.
A person who has permanently lost consciousness, due to damage to the brain, but remains alive; sometimes continued life requires support by machinery such as breathing tubes. Such a person is said to be in a vegetative state.