iodopsin

Plural: iodopsins

Noun

• A light-sensitive pigment found in the cones of the retina.
• a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision
• A photoreceptor protein found in the cone cells of the retina, the basis of colour vision.

Examples

• His iodopsin must have been working overtime to spot that hidden ’VISION’ in the tile bag.