In*tern"al (?), a. [L. internus; akin to interior. See Interior.]
Inward; interior; being within any limit or surface; inclosed; -- opposed to external; as, the internal parts of a body, or of the earth.
Derived from, or dependent on, the thing itself; inherent; as, the internal evidence of the divine origin of the Scriptures.
Pertaining to its own affairs or interests; especially, (said of a country) domestic, as opposed to foreign; as, internal trade; internal troubles or war.
Pertaining to the inner being or the heart; spiritual.
With our Savior, internal purity is everything.
Intrinsic; inherent; real.
The internal rectitude of our actions in the sight of God.
Lying toward the mesial plane; mesial.
Internal angle Geom., an interior angle. See under Interior. -- Internal gear Mach., a gear in which the teeth project inward from the rim instead of outward.
Syn. -- Inner; interior; inward; inland; inside.
© Webster 1913.