[si.roc.co] n, pl -cos [It scirocco, sirocco, fr. Ar sharq east] (1617) 1 a: a hot dust-laden wind from the Libyan deserts that blows on the northern Mediterranean coast chiefly in Italy, Malta, and Sicily b: a warm moist oppressive southeast wind in the same regions
2: a hot or warm wind of cyclonic origin from an arid or heated region