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retinal


2ret·i·nal

noun \ˈre-tə-ˌnal, -ˌnl\

Definition of RETINAL

: 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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