extern exterminist • external · · · Info · Definitions · Synonyms · Characters · · extern · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a nonresident doctor or medical student; connected with a hospital but not living there. Synonyms: medical extern. · · Noun Definition 1 Synonyms · · · medical extern · · Synonym 1 Characters · · e latin small letter e U+0065 n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 x latin small letter x U+0078