1. a bright reflection of light from the eyes of an animal, especially at night when illuminated by a flashlight or headlights
Usage: commonly observed in nocturnal animals such as deer, cats, and raccoons

Examples

• The deer's eyeshine glowed red in the headlights as it crossed the road.
• At night, the cat's eyeshine was visible from across the dark room.
• Hunters often spot wildlife by looking for eyeshine in the forest with a flashlight.
• The raccoon's eyeshine betrayed its location in the trash can.
• Many nocturnal animals have eyeshine due to a reflective layer behind their retinas.