Definition of "internal"

Of or situated on the inside.

1. (medicine) Within the body.  examples

2. Concerned with the domestic affairs of a nation, state or other political community.  examples

3. Concerned with the non-public affairs of a company or other organisation.  examples

4. (biology) Present or arising within an organism or one of its parts.

5. (pharmacology) Applied or intended for application through the stomach by being swallowed.

Experienced in one's mind; inner rather than expressed.  examples

Of the inner nature of a thing.  examples

(Britain, education, of a student) Attending a university as well as taking its examinations.  examples