noun A plant raised for some edible part of it, such as the leaves, roots, fruit or flowers, but excluding any plant considered to be a fruit, grain, herb, or spice in the culinary sense, and usually including non-plants lumped into the same culinary category, such as edible mushrooms and seaweed.
noun The edible part of such a plant.
noun A person whose brain (or, infrequently, whose body) has been damaged to the point that they cannot interact with the surrounding environment; a person in a persistent vegetative state.