Mildew /(?)/

Mil·dew

Mildew

n.
  1. A growth of minute powdery or webby fungi, whitish or of different colors, found on various diseased or decaying substances. (Bot.)

Phrases & Compounds
powdery mildew
a fungal disease of plants caused by an ascomycete of the order Erysiphales, characterized by a powdery white film on the surface of the affected plants. It is damaging to, e.g., roses and lilacs. Also, a fungus that causes such a disease.

Mildew

v. t.

imp. & p. p. Mildewed; p. pr. & vb. n. Mildewing

  1. To taint with mildew; as, mildewed clothing.
    He . . . mildews the white wheat.

Mildew

v. i.
  1. To become tainted with mildew.