Definition of "vinaigrette"

A sauce, made of an acidic liquid such as vinegar or lemon juice; oil; and other ingredients, used as a salad dressing, or as a marinade for cold meats.  examples

(obsolete) A small perforated box for holding aromatic vinegar contained in a sponge, or a smelling bottle for smelling salts; called also vinegarette.  quotations

(obsolete) A small, two-wheeled vehicle, like a Bath chair, to be drawn or pushed by a person.

A sort of Russian salad, originally using French salad dressing.  examples