The Collaborative International Dictionary of English v.0.48:
Cisalpine \Cis*al"pine\, a. [L. Cisalpinus; cis on this side + Alpinus Alpine.] On the hither side of the Alps with reference to Rome, that is, on the south side of the Alps; -- opposed to transalpine. [1913 Webster]WordNet (r) 3.0 (2006):
cisalpine adj 1: on the Italian or Roman side of the Alps; "ancient cisalpine Gaul included an area south and east of the Alps" [syn: cisalpine, ultramontane]