In*tern"al (?), a. [L. internus; akin to interior. See Interior.]
1. Inward; interior; being within any limit or surface; inclosed; -- opposed to
external; as, the internal parts of a body, or of the earth.
2. Derived from, or dependent on, the thing itself; inherent; as, the internal evidence of the divine
origin of the Scriptures.
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.
With our Savior, internal purity is everything.
Paley.
5. Intrinsic; inherent; real. [R.]
The internal rectitude of our actions in
the sight of God.
Rogers. 6. (Anat.)
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.
Hear it pronounced