From The Food Encyclopedia by Jacques Rolland and Carol Sherman
1. a small, but plump amber-green grape native to Turkey, where it has been grown since ancient times for winemaking; hundreds of thousands of tons of sun-dried sultana raisins are now produced in the Aegean region of that country. In North America, where they are grown for table grapes, juice making and, of course, for raisins, sultanas are called Thompson seedless grapes. 2. the raisin made from a sultana.
