rice vinegar means: Vinegar with delicate flavors and lower acidity that many commercial vinegars. This vinegar is great for vinaigrettes. This product is available in all Asian and supermarkets. (in Cooking Dictionary)

What else does rice vinegar mean?

Rice vinegar can be used in Japanese and Chinese cuisines. It is made of fermented rice. There are many varieties available, with each one being slightly tart. They are generally milder than American and European-style vinegars. You can use them in salad dressings, marinades and as condiments. (in Cooking Dictionary)