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photopigment

DEFINITIONS OF: photopigment

1

n a special pigment found in the rods and cones of the retina

Types:
iodopsin
a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision
retinal purple, rhodopsin, visual purple
a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light
Type of:
pigment
dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
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