Meaning of EXTERNAL in English
1》 belonging to, situated on, or forming the outside.
2》 coming or derived from a source outside the subject affected.
↘coming from or relating to a country or institution other than the main subject: a department of ~ affairs.
3》 for or concerning students registered with and taking the examinations of a university but not resident there.
■ noun ( ~s ) outward features.
ME: from med. L., from L. exter 'outer'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004