Orphan \Or"phan\, n. [L. orphanus, Gr. ?, akin to L. orbus. Cf. {Orb} a blank window.] A child bereaved of both father and mother; sometimes, also, a child who has but one parent living. {Orphans' court} (Law), a court in some of the States of the Union, having jurisdiction over the estates and persons of orphans or other wards. --Bouvier.