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rhizopod
rhizopus
rhizosphere
rhizotomy
rho
rhod-
rhodamine
Rhode Island
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rhodopsin
rho·dop·sin [ rō dópsin ]


noun 
Definition:
 
light-sensitive pigment: a reddish light-sensitive pigment found in the rod cells of the retina
[Late 19th century. <rhodo- + Greek opsis "sight"]
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