Internal

1. Lying toward the mesial plane; mesial.
2. Inward; interior; being within any limit or surface; inclosed; -- opposed to external; as, the internal parts of a body, or of the earth.
3. Pertaining to its own affairs or interests; especially, (said of a country) domestic, as opposed to foreign; as, internal trade; internal troubles or war.
4. Pertaining to the inner being or the heart; spiritual.
5. Derived from, or dependent on, the thing itself; inherent; as, the internal evidence of the divine origin of the Scriptures.
6. Intrinsic; inherent; real.