Basilican adj. Of, relating to, or resembling, a basilica; basilical. "There can be no doubt that the first churches in Constantinople were in the basilican form."
... of the discoveries made in Roman Britain is the little church which stood just outside the forum. It is very similar in form to the early churches in Italy and other parts of the Roman Empire, and is of the basilican type. The orientation is different from that used after the reign of Constantine, the altar being at the west end. The churches of S. Peter and S. Paul at Rome had the same arrangement; and the priest evidently stood behind the altar facing the ... — English Villages • P. H. Ditchfield