enriched flour [en-rich flou-er] noun
Flour with added nutrients (B vitamins and iron) to satisfy FDA standards. The manufacturing process used to produce white flour can remove these nutrients from the whole grain. You will find both bleached and unbleached flours that have been “enriched.”
While enriched flours have nutrients added back in, they begin with flour stripped of its natural nutrients. Most artisanal bakers do not consider enriched flour to be a natural, whole food and prefer flour that was not compromised in the first place.