Mealy

Part of speech: adjective (a.)

1. Having the qualities of meal; resembling meal; soft, dry, and friable; easily reduced to a condition resembling meal; as, a mealy potato.

2. Overspread with something that resembles meal; as, the mealy wings of an insect. Shak. Mealy bug (Zoöl.), a scale insect (Coccus adonidum, and related species), covered with a white powderlike substance. It is a common pest in hothouses.