Webster’s Revised Unabridged Dictionary · 1913
Flour
Flour (flour), n. [F. fleur de farine the flower (i.e., the best) of meal, cf. Sp. flor de la harina superfine flour, Icel. flür flower, flour. See Flower.] 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.
Flour bolt, in milling, a gauze-covered, revolving, cylindrical frame or reel, for sifting the flour from the refuse contained in the meal yielded by the stones. — Flour box a tin box for scattering flour; a dredging box. — Flour dredge or dredger, a flour box. — Flour dresser, a mashine for sorting and distributing flour according to grades of fineness. — Flour mill, a mill for grinding and sifting flour.
Flour, v. t. [imp. & p. p. Floured; p. pr. & vb. n. Flouring.] 1. To grind and bolt; to convert into flour; as, to flour wheat.
2. To sprinkle with flour.