Apocrisiary \Ap`o*cris"i*a*ry\, Apocrisiarius \Ap`o*cris`i*a"ri*us\, n. [L. apocrisiarius, apocrisarius, fr. Gr. ? answer, fr. ? to answer; ? from + ? to separate.] (Eccl.) A delegate or deputy; especially, the pope's nuncio or legate at Constantinople.