Meal"y (?), a. [Compar. Mealier (?); superl. Mealiest.]
Having the qualities of meal; resembling meal; soft, dry, and friable; easily reduced to a condition resembling meal; as, a mealy potato.
Overspread with something that resembles meal; as, the mealy wings of an insect.
Mealy bug Zool., a scale insect (Coccus adonidum, and related species), covered with a white powderlike substance. It is a common pest in hothouses.
© Webster 1913.