What does "internal" mean?

Internal: Derived from, or dependent on, the thing itself; inherent; as, the internal evidence of the divine origin of the Scriptures.

Additional senses

  1. 2.Pertaining to its own affairs or interests; especially, (said of a country) domestic, as opposed to foreign; as, internal trade; internal troubles or war.
  2. 3.Pertaining to the inner being or the heart; spiritual. With our Savior, internal purity is everything. Paley.
  3. 4.Intrinsic; inherent; real. [R.] The internal rectitude of our actions in the sight of God. Rogers.
  4. 5.(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.

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