n.
- One who argues against a cause or position, not as a committed opponent but simply for the sake of argument or to determine the validity of the cause or position.
- Roman Catholic Church. An official appointed to present arguments against a proposed canonization or beatification.
[Translation of Medieval Latin advocātus diabolī, one arguing for the devil's plea against canonizing a saint : Latin advocātus, advocate + Late Latin diabolī, genitive of diabolus, devil.]





