Mis″sion‐ary (?), n.; pl.Missionaries (#). [Cf. F. missionnaire. See Mission, n.] One who is sent on a mission; especially, one sent to propagate religion. Swift.
Missionary apostolic, a Roman Catholic missionary sent by commission from the pope.
Webster's Dictionary 1913
Mis″sion‐ary (?), n.; pl.Missionaries (#). [Cf. F. missionnaire. See Mission, n.] One who is sent on a mission; especially, one sent to propagate religion. Swift.
Missionary apostolic, a Roman Catholic missionary sent by commission from the pope.