1
- N. Amer. a non-resident doctor or other worker in a hospital〈北美〉非住院医师; 不住院的医务人员。
2
- (in a strictly enclosed order of nuns) a sister who does not live exclusively within the enclosure and goes on outside errands（有时不住在修道院内的跑外差的）外勤修女。
with obj.
- SE Asian banish (someone considered politically undesirable) from a region or district〈东南亚〉驱逐（政治异己分子）：
he was externed for inciting communal tension in Mumbai.
他因在孟买挑起种族紧张局势而被驱逐。
词源
mid 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 senses date from the early 17th cent.