The Collaborative International Dictionary of English v.0.48:
Basilican \Ba*sil"i*can\, a. Of, relating to, or resembling, a basilica; basilical. [1913 Webster] There can be no doubt that the first churches in Constantinople were in the basilican form. --Milman. [1913 Webster]WordNet (r) 3.0 (2006):
basilican adj 1: of or relating to or resembling a basilica