mildew
US /ˈmɪl.duː/
UK /ˈmɪl.duː/

1.
pleśń, mączniak
a thin whitish coating of a fungus that grows on plants or damp organic material such as paper or leather
:
•
The old books in the attic were covered in mildew.
Stare książki na strychu były pokryte pleśnią.
•
You can smell the mildew in this damp basement.
W tej wilgotnej piwnicy czuć zapach pleśni.