I. (ˈ)ek|stərn adjective
Etymology: Middle French or Latin; Middle French externe, from Latin externus
archaic : of, relating to, or situated on or at the outside : external , outer
II. noun
also ex·terne ˈekˌstərn
( -s )
Etymology: French externe, from externe, adjective
1. : a person connected with an institution but not living or boarding in it: as
a. : a day student of a school
b. : a nonresident doctor or medical student at a hospital
2. : a nun of a strictly enclosed order (as the Carmelites) that lives within the convent but outside the enclosure and attends to the convent's outside affairs