The term "flour" refers to a fine powder made from grains such as wheat, corn or rice. When something is described as being floured it means that it has been coated with this powdery substance. This can be done intentionally for various purposes like thickening sauces, dusting baking goods before cooking, or to prevent sticking while working with dough. Flour may also adhere accidentally when handling wet ingredients or liquids that have been in contact with flour.