PHOTOPIGMENT

Pronunciation (US): (GB):

Meaning:

A special pigment found in the rods and cones of the retina

Classified under:

Nouns denoting substances

Hypernyms ("photopigment" is a kind of...):

pigment (dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.))

Hyponyms (each of the following is a kind of "photopigment"):

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)