What term describes a wine that has been specifically labeled to indicate it is made from a single variety of grape?

The term that describes a wine made from a single variety of grape is referred to as "single varietal." This designation indicates that the wine primarily contains one type of grape, which allows consumers to understand better the characteristics and flavor profile associated with that specific grape variety. Single varietal wines are often celebrated for highlighting the unique qualities, terroir, and taste nuances of the grape used, providing a more focused experience compared to wines that are blends of multiple grape varieties.

In contrast, a blend refers to wines that incorporate multiple grape varieties, which can create complex flavor profiles but may not emphasize a single grape's characteristics. A fortified wine is one that has had spirits added to it, increasing its alcohol content and often changing its flavor profile, while "estate bottled" refers to wines produced from grapes grown and harvested on a single estate, without necessarily indicating the grape variety used. Each of these terms highlights different attributes of wine, but when discussing a wine made from only one type of grape, "single varietal" is the correct term.