HIP, in the Materia Medica, the fruit of the dog-rose, or wild brier. See ROSA, BOTANY Index.—This fruit contains a fourth sweetish pulp; with a rough prickly matter enclosing the seeds, from which the pulp ought to be carefully separated before it be taken internally: the Wirttemberg college observes, that from a neglect of this caution, the pulp of hips sometimes occasions a pruritus and uneasiness about the anus; and the conserve of it has been known to excite violent vomiting. The conserve is the only officinal preparation of this fruit.