photopsin
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pho·top·sin
(fō-top'sin),The protein moiety (opsin) of the pigment (iodopsin) in the cones of the retina.
pho·top·sin
(fō-top'sin)The protein moiety (opsin) of the pigment (iodopsin) in the cones of the retina.
photopsin
(fō-tŏp′sĭn)The protein portion (opsin) of the photopigments in the cones of the retina.