A moist, slightly cohering mass, consisting of soft, undissolved animal or vegetable matter. Specifically: (a) (Anat.) A tissue or part resembling pulp; especially, the soft, highly vascular and sensitive tissue which fills the central cavity, called the pulp cavity, of teeth. (b) (Bot.) The soft, succulent part of fruit; as, the pulp of a grape. (c) The exterior part of ...