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English definition of “mildew”

mildew

noun [U] uk   /ˈmɪl.djuː/ us    /-duː/
a black, green, or whitish area caused by a fungus that grows on things such as plants, paper, cloth, or buildings, usually if the conditions are warm and wet: There are patches of mildew on the walls.Bacteria, moulds, germs and viruses
mildewed
adjective uk   /-djuːd/ us    /-duːd/
mildewed rose bushesBacteria, moulds, germs and viruses
(Definition of mildew from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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