Noah Webster's New International Dictionary of the English Language

1. (a.) Outward; exterior; acting from without; -- opposed to internal; as, the external form or surface of a body.

2. (a.) Outside of or separate from ourselves; (Metaph.) separate from the perceiving mind.

3. (a.) Outwardly perceptible; visible; physical or corporeal, as distinguished from mental or moral.

4. (a.) Not intrinsic nor essential; accidental; accompanying; superficial.

5. (a.) Foreign; relating to or connected with foreign nations; as, external trade or commerce; the external relations of a state or kingdom.

6. (a.) Away from the medial plane of the body; lateral.

7. (n.) Something external or without; outward part; that which makes a show, rather than that which is intrinsic; visible form; -- usually in the plural.