мучные

In a sentence

• Я купил мучные изделия в магазине.

  I bought flour-based products at the store.

  The word 'мучные' is used as an adjective meaning 'flour-based,' referring to products made from flour. In this context, it describes the items (изделия) purchased.

• На кухне стояла мучная пыль.

  There was flour dust in the kitchen.

  Here, 'мучная' is an adjective derived from 'мука,' meaning 'flour.' It describes the type of dust present in the kitchen, indicating it is flour dust.

• Мучная еда может быть вкусной, но не всегда полезной.

  Flour-based food can be tasty but not always healthy.

  This usage of 'мучная' refers again to 'flour-based,' describing the food. It emphasizes the characteristic of being made from flour as a central theme in the sentence.