adj. & n.
adj. 1 of or situated in the inside or invisible part. 2 relating or applied to the inside of the body (internal injuries). 3 of a nation's domestic affairs. 4 (of a student) attending a university etc. as well as taking its examinations. 5 used or applying within an organization. 6 a of the inner nature of a thing; intrinsic. b of the mind or soul.
n. (in pl.) intrinsic qualities. internal-combustion engine an engine with its motive power generated by the explosion of gases or vapour with air in a cylinder. internal energy the energy in a system arising from the relative positions and interactions of its parts. internal evidence evidence derived from the contents of the thing discussed. internal exile see EXILE n. 1. internal rhyme a rhyme involving a word in the middle of a line and another at the end of the line or in the middle of the next. internality n. internalize v.tr. (also -ise). internalization n. internally adv.
[ mod.L internalis (as INTERN) ]