Situated or comprised within, or in an inner part or place; inclosed; on the finite side of a bounding surface or line; within the outer boundary of; visceral.Pertaining to the subject itself, and independent, or relatively so, of other things. Thus, the internal affairs of a country are the affairs of its people with one another.Inner; pertaining to the mind, or to the relations of the mind to itself.In anatomy and zoology, in general, inner or interior; not superficial; deep-set; away from the surface or next to the axis of the body or of a part: as, the internal carotid or iliac artery; the internal head of the gastrocnemius.To be taken internally, as a medicine.Applied to a student who has studied in a college of an examining university, as opposed to an external student, or one who has studied in a college not belonging to that institution.