si ‧ roc ‧ co /səˈrɒkəʊ, sɪˈrɒkəʊ $ -ˈrɑːkoʊ/ BrE AmE noun ( plural siroccos ) [countable]
[ Date: 1600-1700 ; Language: Italian ; Origin: scirocco , from Arabic sharq 'east' ]
a hot wind that blows from the desert of North Africa across to southern Europe