Vinaigrette (noun)

1. A sauce made of oil and vinegar, usually with herbs, spices, and other flavorings.
2. A salad dressing made with oil, vinegar, and seasonings.

Origin:

French, from vinaigre vinegar, from old french, from vin wine + aigre sour.

Examples:

1. I'm going to make a vinaigrette to dress my salad.
2. The vinaigrette is a simple yet delicious dressing for any salad.
3. The fish was served with a vinaigrette of olive oil, lemon juice, and herbs.
4. She made a vinaigrette of balsamic vinegar, honey, and dijon mustard.
5. The vinaigrette can be stored in the refrigerator for a couple of weeks.