Noun

(wikipedia flour) (en-noun)

Powder obtained by grinding or milling cereal grains, especially wheat, and used to bake bread, cakes, and pastry.

* {{quote-book, year=1963, author=(Margery Allingham)

, title=(The China Governess) , chapter=Foreword citation , passage=Everything a living animal could do to destroy and to desecrate bed and walls had been done. […]  A canister of flour from the kitchen had been thrown at the looking-glass and lay like trampled snow over the remains of a decent blue suit with the lining ripped out which lay on top of the ruin of a plastic wardrobe.}}

and certain bleaching agents.

Powder of other material.

wood flour , produced by sanding wood

mustard flour

that nobody is wished to see my dead body. & that no murnurs walk behind me at my funeral. & that no flours be planted on my grave.'' — Thomas Hardy, ''The Mayor of Casterbridge .