mildew

Từ điển Oxford Advanced Learner 8th

mil·dew [mildew mildews mildewed mildewing] BrE [ˈmɪldjuː] NAmE [ˈmɪlduː] noun uncountable
a very small white ↑fungus that grows on walls, plants, food, etc. in warm wet conditions

Word Origin:
Old English mildēaw ‘honeydew’, of Germanic origin. The first element is related to Latin mel and Greek meli ‘honey’.

• Từ đồng nghĩa / Synonyms:
  mold, mould