division of the W Alps, along the Swiss-Italian border, northeast of the Graian Alps: highest peak, c. 15,200 ft (4,633 m)
See Pennine Alps in American Heritage Dictionary 4
(pĕnˈīnˌ)
A range of the Alps extending southwest to northeast along the Swiss-Italian border from Great St. Bernard Pass to Simplon Pass. It rises to 4,636.9 m (15,203 ft) at Monte Rosa.