What is the difference between gelato, ice cream, and sorbet?

Gelato is an Italian frozen dessert that is denser and creamier than ice cream, with less air whipped into it. Ice cream is a frozen dessert made with cream, sugar, and flavorings, and has a higher fat content than gelato. Sorbet is a frozen dessert made with fruit puree, sugar, and water, and does not contain any dairy.