flour UK /ˈflaʊ.ə/US /ˈflaʊ.ɚ/noun 3verb 3forms 3 noun3 •Powder obtained by grinding or milling cereal grains, especially wheat, or other foodstuffs such as soybeans and potatoes, and used to bake bread, cakes, and pastry. •The food made by grinding and bolting cleaned wheat (not durum or red durum) until it meets specified levels of fineness, dryness, and freedom from bran and germ, also containing any of certain enzymes, ascorbic acid, and certain bleaching agents. •Powder of other material. verb3 •To apply flour to something; to cover with flour.Flour the surface before rolling out the dough. •To reduce to flour. •To break up into fine globules of mercury in the amalgamation process. formsfloured · flouring · flours