See Also: 11-cis-retinal(medicine)
retinal rod(medicine)
retinal(2)(dictionary)
Retinal(health)
retinal(1)(dictionary)
Retinal(medicine)
Retinal layers(health)
retinal neovascularization(medicine)
retinal monooxygenase(medicine)
retinal isomerase(medicine)

retinal(2) (iou)



retinal noun. M20.
[from RETINA + -AL2.]
Biochemistry. Either of two closely related yellow carotenoids which are the aldehydes of vitamins A1 and A2 (retinol) and occur in the retina combined with opsin as the visual pigment rhodopsin; esp. the aldehyde of vitamin A1. Also called retinene.
Also reti'naldehyde noun M20.