internal gear

Webster's Dictionary (GCIDE)

Internal \In*tern"al\, a. [L. internus; akin to interior. See Interior.] [1913 Webster]

1.Inward; interior; being within any limit or surface; inclosed; -- opposed to external; as, the internal parts of a body, or of the earth. [1913 Webster]

2.Derived from, or dependent on, the thing itself; inherent; as, the internal evidence of the divine origin of the Scriptures. [1913 Webster]

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. [1913 Webster]

4.Pertaining to the inner being or the heart; spiritual. [1913 Webster]

With our Savior, internal purity is everything.— Paley.[1913 Webster]

5.Intrinsic; inherent; real. [R.] [1913 Webster]

The internal rectitude of our actions in the sight of God.— Rogers.[1913 Webster]

6.(Anat.) Lying toward the mesial plane; mesial. [1913 Webster]

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. [1913 Webster] Internal-combustion