/uy"spot'/ , n.
1. a sensory organ of lower animals, having a light-perceiving function.
2. an eyelike spot, as on the tail of a peacock; eye.
3. Plant Pathol. a disease of plants, characterized by elliptical lesions on the leaves and stems, stunting of growth, and rotting, caused by any of several fungi.
[ 1580-90; EYE + SPOT ]