1. fine powdery foodstuff obtained by grinding and sifting the meal of a cereal grain
2. The finely ground meal of wheat, or of any other grain; especially, the finer part of meal separated by bolting; hence, the fine and soft powder of any substance; as, flour of emery; flour of mustard.
3. cover with flour
flour fish or meat before frying it
4. convert grain into flour
5. To grind and bolt; to convert into flour; as, to flour wheat.