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1

retinal

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adjective ret·i·nal \ˈre-tə-nəl, ˈret-nəl\

Definition of retinal

  1. :  of, relating to, involving, or being a retina



1838

First Known Use of retinal

1838


2

retinal

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noun ret·i·nal \ˈre-tə-ˌnal, -ˌnȯl\

Definition of retinal

  1. :  a yellowish to orange aldehyde C20H28O derived from vitamin A that in combination with proteins forms the visual pigments of the retinal rods and cones



Origin of retinal

retin- + 3-al


First Known Use: 1944



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