flour
[U] Uncountable
This term evokes the dry, dusty atmosphere of a bakery or a pantry. It suggests a raw, foundational ingredient that requires a catalyst like water or heat to transform into something solid and edible. While often associated with wheat, the word now covers a wide range of gluten-free alternatives. It carries a neutral, utilitarian connotation, focusing on the physical property of being a fine powder rather than the taste of the final product.
Used for the powder itself as a bulk substance, such as when you buy a bag of flour.