The Collaborative International Dictionary of English v.0.48:
Himalayan \Hi*ma"la*yan\, a. [Skr. him[=a]laya, prop., the abode of snow.] Of or pertaining to the Himalayas, the great mountain chain in Asia. [1913 Webster]WordNet (r) 3.0 (2006):
Himalayan adj 1: of or relating to the Himalayas; "Himalayan peaks"