<p><strong>Noun</strong></p><ul><li>a sensory organ of lower animals, having a light-perceiving function</li><li>an eyelike spot, as on the tail of a peacock; eye</li><li>Plant Pathology: a disease of plants, characterized by elliptical lesions on the leaves and stems, stunting of growth, and rotting, caused by any of several fungi</li></ul>