Extern

[eks'tә:n]

(noun.) a nonresident doctor or medical student; connected with a hospital but not living there.

埃文编辑--From WordNet

(a.) External; outward; not inherent.

(n.) A pupil in a seminary who lives without its walls; a day scholar.

(n.) Outward form or part; exterior.

整理:罗德尼

n. [1]. Day-scholar.[2]. [Rare.] Exterior, outward part.

录入:厄普顿