1. A state or condition being blighted.
2. Any plant disease resulting in withering without rotting.
Any of a number of plant diseases caused mainly by parasitic species of fungus, which produce a whitish appearance on leaf and stem surfaces; for example, potato blight Phytophthora infestans. General damage caused by aphids or pollution is sometimes known as blight.

To cause to suffer a blight; SYN. plague.