Flour (noun)

1. A powder made by grinding cereal grains, typically wheat, and used to make bread, cakes, and pastry.
2. A fine powder obtained by grinding a substance, especially a cereal grain.

Origin:

Middle english flour, from old english flōr, from latin farina, from far "wheat".

Examples:

1. She added flour to the mixture.
2. He dusted the counter with flour.
3. She sifted the flour before adding it to the mixture.
4. She made a flour and water paste.
5. The recipe calls for two cups of flour.