This means that the wine, after it's been made, ages in a barrel. This is usually used with the notion that the barrels are wood. Aging wine in barrels or other vessels (such as stainless steel tanks) gives it additional flavors and is considered an integral part of the wine making process.
Dessert wine do not need to be aged, but can be. Make sure if it is a white dessert wine, it is chilled.
it is called fine aged wine
A cask is a wooden barrel in which wine is aged.
Approximately 2 quarts of wine evaporates from an oak wine barrel in a month. This allows the wine to become more concentrated in flavor and aroma.
Rose wine does not need ageing by the consumer.
The two methods are not really comparable, because each is used for different wine varietals.
There is no oak in wine. Wine is aged in oak barrels to give it a certain flavor.
The cask of wine was stolen by the town drunk. A cask is a wooden barrel.
Lees
A wine cask is a large wooden barrel that wine is stored in. Casks can impart flavors to the wine, and are important in the creation of wines.
The portion of wine that evaporates in an aging barrel is known as the "angel's share." This evaporation process can contribute to the concentration and complexity of the remaining wine.
Cases don't normally come in barrels, so you'd have to be a lot more specific as to what you mean. A barrel is a bulk measurement, while a case is normally a collection of individual containers. The volume of a barrel, or the number and volume of individual containers within a case, varies widely depending on what is being measured. A barrel of beer is not the same size as a barrel of oil, which is not the same size as a barrel of pickles, which is not the same size as (and so on).