This is the 9129th most frequent Portuguese word.
bolor
Mold.
In this sentence, 'bolor' refers to the mold or fungal growth that consumes organic material, in this case, bread.
O pão que estava na gaveta criou bolor.
The bread that was in the drawer developed mold.
Here, 'bolor' is used in a more general sense, indicating the presence of mustiness usually associated with damp and aged environments.
O cheiro de bolor no porão era forte.
The smell of mold in the basement was strong.
In this example, 'bolor' is employed in an instructional context, where the term represents the growth of mold and the advice aims to prevent it.