This is the 13333rd most frequent Russian word.
мучные
"Мучные" means "flour-based" or "made of flour."
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.
Я купил мучные изделия в магазине.
I bought flour-based products at the store.
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.
На кухне стояла мучная пыль.
There was flour dust in the kitchen.
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.