Definition of photopigment Photopigment

We found 2 definitions of photopigment from 2 different sources.

What does photopigment mean?

Noun Plural: photopigments
photopigment - a special pigment found in the rods and cones of the retina
		pigment dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
		iodopsin a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision

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photopigment (Noun)
Any pigment that is unstable in the presence of light; used especially of the chromophore pigments in the rod cell s and cone cell s of the eye.