In the context of cappuccino, "wet" and "dry" refer to the ratio of milk to foam in the beverage.  A wet cappuccino has a higher proportion of steamed milk, resulting in a creamier and smoother texture. It typically contains equal parts espresso, steamed milk, and milk foam. The higher milk content gives a wet cappuccino a milder coffee flavor and a richer mouthfeel. On the other hand, a dry cappuccino has less steamed milk and more milk foam. It has a lighter and drier texture with a stronger coffee flavor. The foam adds an airy and frothy element to the drink. A dry cappuccino is preferred by those who enjoy a more pronounced espresso taste and a lighter overall drink. The choice between wet and dry cappuccino ultimately comes down to personal preference and the desired balance of coffee and milk in the beverage.