the whole physical structure that forms a person or animal: the main part of a person's or animal's body, without the head, or without the head, arms, and legs: He had a fat body but thin legs and arms. A good diet and plenty of exercise will help you to keep your body healthy. She rubbed suncream over her entire body. a dead person: A body was washed up on the beach last week. Synonyms cadaver specialized carcass corpse