Ex-tēr'nal, a.

a. [Lat. externus, from exter, externus, on the outside, outward; Sp. externo, It. esterno, Fr. externe.]

1. Perceptible by the senses; having existence in space; outward; exterior;—opposed to internal; as, the external form or surface of a body. “Of all external things the forms.” Milton.
2. Derived from, or related to, the body, its appearance, functions, &c.; or relating to pleasures or gratifications dependent on existence in the body. “Her virtues graced with external gifts.” Shak.
3. Not intrinsic nor essential; accidental; accompanying; irrelevant. “The external circumstances are greatly different.” Trench.
4. Foreign; relating to or connected with foreign nations; as, external trade or commerce; the external relations of a state or kingdom.

External taxes, duties or imposts laid on goods imported into a country.