n. Originally, a member of any of the families constituting the populus Romanus, or body of Roman citizens, before the development of the plebeian order; later, one who, by right of birth or by special privilege conferred, belonged to the senior class of Romans, who, with certain property, had by right a seat in the Roman Senate.n. A person of high birth; a nobleman.n. One familiar with the works of the Christian Fathers; one versed in patristic lore or life.adj. Of or pertaining to the Roman patres (fathers) or senators, or patricians.adj. Of, pertaining to, or appropriate to, a person of high birth; noble; not plebeian.adj. Of or pertaining to St. Patrick.