Definition of extern noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈekstɜːn//
; NAmE NAmE//ˈekstɜːrn//
(US English)
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a person who works in an institution but does not live there, especially a doctor or other worker in a hospital Word Originmid 16th cent. (as an adjective in the sense ‘external’): from French externe or Latin externus, from exter ‘outer’. The word was used by Shakespeare to mean ‘outward appearance’; current noun senses date from the early 17th cent.