Externe \Ex`terne"\ ([e^]ks`t[e^]rn"), n. [F.] An extern; esp;, a doctor or medical student who is in attendance upon, or is assisting at, a hospital, but who does not reside in it. Externe \Ex`terne"\, n. [F. Cf. {Extern}.] (med.) An officer in attendance upon a hospital, but not residing in it; esp., one who cares for the out-patients.