What is the difference between dry white wine and medium wine?

There's a bit of a mix-up in the question! "Medium wine" isn't a standard wine category.

Here's what we can break down:

* Dry White Wine: This refers to a white wine with low residual sugar. It's typically crisp, refreshing, and often has a dry finish. Some examples are Sauvignon Blanc, Pinot Grigio, and Chardonnay (though Chardonnay can also be made in a richer, oaked style).

* Medium-bodied Wine: This refers to the wine's weight and texture on your palate. It falls between light-bodied (think Pinot Noir or Riesling) and full-bodied (like Cabernet Sauvignon or Zinfandel). A medium-bodied wine can be red, white, or even rosé.

It's possible someone was trying to say "medium-dry white wine". This would describe a white wine with a slightly sweet, but not overly so, taste. It's more nuanced than "dry" and might be more accurately described as "off-dry" or "semi-dry".

To be more accurate, you'd need to specify what you're asking about:

* If you're wondering about sweetness: You're comparing "dry" (no residual sugar) to "medium-dry" (slightly sweet).

* If you're wondering about body: You're comparing "light-bodied" (dry white wines like Pinot Grigio) to "medium-bodied" (which could be a dry white wine, like a richer Chardonnay).

Let me know if you can clarify your question! I'm happy to explain further.