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.
In`ter*nal"i*ty (?), n. The state of being internal or within;
interiority.
In*ter"nal*ly (?), adv. 1. Inwardly; within the enveloping surface, or
the boundary of a thing; within the body; beneath the surface.