Sudstituted Service
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In English practice. Service of process made under authorisation of the court upon some other person, when the person who should be served cannot be found or cannot be reached.
In American law
Service of process upon a defendant in any manner, authorised by statute, other than personal service within the jurisdiction; as by publication, by mailing a copy to .his last known address, or by persenal service in another state.