Sentence:  In popular usage there is no exact distinction between a <WSD>fruit</WSD> and a vegetable, except where the latter consists of the stem, leaves, or root of the plant. Thus the apple, pear, orange, lemon, peach, plum, grape, banana, persimmon, pineapple, and most berries are generally recognized as <WSD>fruits</WSD>; the pea, bean, pumpkin, squash, eggplant, cucumber, etc., are vegetables; while the tomato and melon are variously regarded. In general it may be said that a <WSD>fruit</WSD> is more frequently eaten in the raw state as a dessert; that it possesses a characteristic aroma and flavor, due to the presence of various organicesters, and when cooked requires sugar to counteract its acidity. <WSD>Fruit</WSD> is occasionally applied to certain other vegetable structures of pronounced flavor eaten as a sauce or dessert, as the stalks of rhubarb. 
Meaning of the word marked with <WSD> tags:  (Specifically,) a sweet, edible part of a plant that resembles seed-bearing fruit (see next sense), even if it does not develop from a floral ovary; (vegetables), such as the (petioles) of (rhubarb), that resemble a true fruit or are used in cookery as if they were a fruit.