In-tĕr'nal, a.

a. [Lat. internus. See supra.]

1Sense 1. Inward; interior; being within any limit or surface; not external; derived from, or dependent on, the object itself; as, the internal parts of a body, of a bone, or of the earth; internal peace; the internal evidence of the divine origin of the Scriptures.

2Sense 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.

3Sense 3. Intrinsic; real; as, the internal rectitude of actions.

4Sense 4. Pertaining to the heart.

With our Savior, internal purity is every thing. Paley.

Internal angle. (Geom.) See INTERIOR.